Search
Find a vulnerability
Search criteria
10 vulnerabilities by locutusjs
CVE-2026-33994 (GCVE-0-2026-33994)
Vulnerability from nvd – Published: 2026-03-27 22:15 – Updated: 2026-04-01 13:45
VLAI
Title
Locutus Prototype Pollution due to incomplete fix for CVE-2026-25521
Summary
Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Starting in version 2.0.39 and prior to version 3.0.25, a prototype pollution vulnerability exists in the `parse_str` function of the npm package locutus. An attacker can pollute `Object.prototype` by overriding `RegExp.prototype.test` and then passing a crafted query string to `parse_str`, bypassing the prototype pollution guard. This vulnerability stems from an incomplete fix for CVE-2026-25521. The CVE-2026-25521 patch replaced the `String.prototype.includes()`-based guard with a `RegExp.prototype.test()`-based guard. However, `RegExp.prototype.test` is itself a writable prototype method that can be overridden, making the new guard bypassable in the same way as the original — trading one hijackable built-in for another. Version 3.0.25 contains an updated fix.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/locutusjs/locutus/security/adv… | x_refsource_CONFIRM |
| https://github.com/locutusjs/locutus/pull/597 | x_refsource_MISC |
| https://github.com/locutusjs/locutus/commit/345a6… | x_refsource_MISC |
| https://github.com/locutusjs/locutus/releases/tag… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-33994",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-01T13:45:33.039333Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-01T13:45:55.451Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "locutus",
"vendor": "locutusjs",
"versions": [
{
"status": "affected",
"version": "\u003e= 2.0.39, \u003c 3.0.25"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Starting in version 2.0.39 and prior to version 3.0.25, a prototype pollution vulnerability exists in the `parse_str` function of the npm package locutus. An attacker can pollute `Object.prototype` by overriding `RegExp.prototype.test` and then passing a crafted query string to `parse_str`, bypassing the prototype pollution guard. This vulnerability stems from an incomplete fix for CVE-2026-25521. The CVE-2026-25521 patch replaced the `String.prototype.includes()`-based guard with a `RegExp.prototype.test()`-based guard. However, `RegExp.prototype.test` is itself a writable prototype method that can be overridden, making the new guard bypassable in the same way as the original \u2014 trading one hijackable built-in for another. Version 3.0.25 contains an updated fix."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1321",
"description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-27T22:15:47.131Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/locutusjs/locutus/security/advisories/GHSA-vc8f-x9pp-wf5p",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-vc8f-x9pp-wf5p"
},
{
"name": "https://github.com/locutusjs/locutus/security/advisories/GHSA-vc8f-x9pp-wf5p",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-vc8f-x9pp-wf5p"
},
{
"name": "https://github.com/locutusjs/locutus/pull/597",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/pull/597"
},
{
"name": "https://github.com/locutusjs/locutus/commit/345a6211e1e6f939f96a7090bfeff642c9fcf9e4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/commit/345a6211e1e6f939f96a7090bfeff642c9fcf9e4"
},
{
"name": "https://github.com/locutusjs/locutus/releases/tag/v3.0.25",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/releases/tag/v3.0.25"
}
],
"source": {
"advisory": "GHSA-vc8f-x9pp-wf5p",
"discovery": "UNKNOWN"
},
"title": "Locutus Prototype Pollution due to incomplete fix for CVE-2026-25521"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-33994",
"datePublished": "2026-03-27T22:15:47.131Z",
"dateReserved": "2026-03-24T22:20:06.212Z",
"dateUpdated": "2026-04-01T13:45:55.451Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-33993 (GCVE-0-2026-33993)
Vulnerability from nvd – Published: 2026-03-27 22:14 – Updated: 2026-03-30 15:45
VLAI
Title
Locutus has Prototype Pollution via __proto__ Key Injection in unserialize()
Summary
Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to version 3.0.25, the `unserialize()` function in `locutus/php/var/unserialize` assigns deserialized keys to plain objects via bracket notation without filtering the `__proto__` key. When a PHP serialized payload contains `__proto__` as an array or object key, JavaScript's `__proto__` setter is invoked, replacing the deserialized object's prototype with attacker-controlled content. This enables property injection, for...in propagation of injected properties, and denial of service via built-in method override. This is distinct from the previously reported prototype pollution in `parse_str` (GHSA-f98m-q3hr-p5wq, GHSA-rxrv-835q-v5mh) — `unserialize` is a different function with no mitigation applied. Version 3.0.25 patches the issue.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/locutusjs/locutus/security/adv… | x_refsource_CONFIRM |
| https://github.com/locutusjs/locutus/pull/597 | x_refsource_MISC |
| https://github.com/locutusjs/locutus/commit/345a6… | x_refsource_MISC |
| https://github.com/locutusjs/locutus/releases/tag… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-33993",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-30T15:45:05.433846Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-30T15:45:18.660Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "locutus",
"vendor": "locutusjs",
"versions": [
{
"status": "affected",
"version": "\u003c 3.0.25"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to version 3.0.25, the `unserialize()` function in `locutus/php/var/unserialize` assigns deserialized keys to plain objects via bracket notation without filtering the `__proto__` key. When a PHP serialized payload contains `__proto__` as an array or object key, JavaScript\u0027s `__proto__` setter is invoked, replacing the deserialized object\u0027s prototype with attacker-controlled content. This enables property injection, for...in propagation of injected properties, and denial of service via built-in method override. This is distinct from the previously reported prototype pollution in `parse_str` (GHSA-f98m-q3hr-p5wq, GHSA-rxrv-835q-v5mh) \u2014 `unserialize` is a different function with no mitigation applied. Version 3.0.25 patches the issue."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1321",
"description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-27T22:14:03.495Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/locutusjs/locutus/security/advisories/GHSA-4mph-v827-f877",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-4mph-v827-f877"
},
{
"name": "https://github.com/locutusjs/locutus/pull/597",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/pull/597"
},
{
"name": "https://github.com/locutusjs/locutus/commit/345a6211e1e6f939f96a7090bfeff642c9fcf9e4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/commit/345a6211e1e6f939f96a7090bfeff642c9fcf9e4"
},
{
"name": "https://github.com/locutusjs/locutus/releases/tag/v3.0.25",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/releases/tag/v3.0.25"
}
],
"source": {
"advisory": "GHSA-4mph-v827-f877",
"discovery": "UNKNOWN"
},
"title": "Locutus has Prototype Pollution via __proto__ Key Injection in unserialize()"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-33993",
"datePublished": "2026-03-27T22:14:03.495Z",
"dateReserved": "2026-03-24T22:20:06.212Z",
"dateUpdated": "2026-03-30T15:45:18.660Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-32304 (GCVE-0-2026-32304)
Vulnerability from nvd – Published: 2026-03-12 21:24 – Updated: 2026-06-30 12:07
VLAI
Title
Locutus: RCE via unsanitized input in create_function()
Summary
Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to 3.0.14, the create_function(args, code) function passes both parameters directly to the Function constructor without any sanitization, allowing arbitrary code execution. This is distinct from CVE-2026-29091 which was call_user_func_array using eval() in v2.x. This finding affects create_function using new Function() in v3.x. This vulnerability is fixed in 3.0.14.
Severity
9.8 (Critical)
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/locutusjs/locutus/security/adv… | x_refsource_CONFIRM |
| https://github.com/locutusjs/locutus/releases/tag… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-32304 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2447200 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| locutusjs | locutus |
Affected:
< 3.0.14
|
|
| Red Hat | Logging Subsystem for Red Hat OpenShift |
cpe:/a:redhat:logging:5 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-32304",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-13T13:12:02.296127Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-13T13:12:13.553Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"cpes": [
"cpe:/a:redhat:logging:5"
],
"defaultStatus": "affected",
"product": "Logging Subsystem for Red Hat OpenShift",
"vendor": "Red Hat"
}
],
"datePublic": "2026-03-12T21:24:51.730Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in Locutus, a JavaScript library that provides standard library functions. The `create_function` function in Locutus passes user-supplied arguments and code directly to the JavaScript `Function` constructor without proper sanitization. This vulnerability allows a remote attacker to execute arbitrary code within the application, potentially leading to full system compromise or data manipulation."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-88",
"description": "Improper Neutralization of Argument Delimiters in a Command (\u0027Argument Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-30T12:07:44.328Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-32304"
},
{
"name": "RHBZ#2447200",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2447200"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32304.json"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-12T22:01:47.245Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-03-12T21:24:51.730Z",
"value": "Made public."
}
],
"title": "locutusjs: Locutus: Arbitrary code execution via unsanitized parameters in create_function",
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"product": "locutus",
"vendor": "locutusjs",
"versions": [
{
"status": "affected",
"version": "\u003c 3.0.14"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to 3.0.14, the create_function(args, code) function passes both parameters directly to the Function constructor without any sanitization, allowing arbitrary code execution. This is distinct from CVE-2026-29091 which was call_user_func_array using eval() in v2.x. This finding affects create_function using new Function() in v3.x. This vulnerability is fixed in 3.0.14."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-94",
"description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-12T21:24:51.730Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/locutusjs/locutus/security/advisories/GHSA-vh9h-29pq-r5m8",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-vh9h-29pq-r5m8"
},
{
"name": "https://github.com/locutusjs/locutus/releases/tag/v3.0.14",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/releases/tag/v3.0.14"
}
],
"source": {
"advisory": "GHSA-vh9h-29pq-r5m8",
"discovery": "UNKNOWN"
},
"title": "Locutus: RCE via unsanitized input in create_function()"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-32304",
"datePublished": "2026-03-12T21:24:51.730Z",
"dateReserved": "2026-03-11T21:16:21.659Z",
"dateUpdated": "2026-06-30T12:07:44.328Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-29091 (GCVE-0-2026-29091)
Vulnerability from nvd – Published: 2026-03-06 17:48 – Updated: 2026-06-30 12:07
VLAI
Title
Locutus: Remote Code Execution (RCE) in locutus call_user_func_array due to Code Injection
Summary
Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to version 3.0.0, a remote code execution (RCE) flaw was discovered in the locutus project, specifically within the call_user_func_array function implementation. The vulnerability allows an attacker to inject arbitrary JavaScript code into the application's runtime environment. This issue stems from an insecure implementation of the call_user_func_array function (and its wrapper call_user_func), which fails to properly validate all components of a callback array before passing them to eval(). This issue has been patched in version 3.0.0.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/locutusjs/locutus/security/adv… | x_refsource_CONFIRM |
| https://github.com/locutusjs/locutus/commit/977a1… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-29091 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2445262 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| locutusjs | locutus |
Affected:
< 3.0.0
|
|
| Red Hat | Logging Subsystem for Red Hat OpenShift |
cpe:/a:redhat:logging:5 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-29091",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-06T18:34:23.537452Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-06T18:34:27.477Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-fp25-p6mj-qqg6"
}
],
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"cpes": [
"cpe:/a:redhat:logging:5"
],
"defaultStatus": "affected",
"product": "Logging Subsystem for Red Hat OpenShift",
"vendor": "Red Hat"
}
],
"datePublic": "2026-03-06T17:48:10.442Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in Locutus, a project that brings standard libraries of other programming languages to JavaScript. A remote attacker could exploit an insecure implementation of the `call_user_func_array` function, which fails to properly validate all components of a callback array before passing them to the eval method. This vulnerability allows the attacker to inject arbitrary JavaScript code into the application\u0027s runtime environment, leading to remote code execution."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-94",
"description": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-30T12:07:52.969Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-29091"
},
{
"name": "RHBZ#2445262",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2445262"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29091.json"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-06T18:01:08.561Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-03-06T17:48:10.442Z",
"value": "Made public."
}
],
"title": "locutus: Locutus: Remote Code Execution via insecure callback function implementation",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
}
],
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"product": "locutus",
"vendor": "locutusjs",
"versions": [
{
"status": "affected",
"version": "\u003c 3.0.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to version 3.0.0, a remote code execution (RCE) flaw was discovered in the locutus project, specifically within the call_user_func_array function implementation. The vulnerability allows an attacker to inject arbitrary JavaScript code into the application\u0027s runtime environment. This issue stems from an insecure implementation of the call_user_func_array function (and its wrapper call_user_func), which fails to properly validate all components of a callback array before passing them to eval(). This issue has been patched in version 3.0.0."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-95",
"description": "CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code (\u0027Eval Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-06T17:48:10.442Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/locutusjs/locutus/security/advisories/GHSA-fp25-p6mj-qqg6",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-fp25-p6mj-qqg6"
},
{
"name": "https://github.com/locutusjs/locutus/commit/977a1fb169441e35996a1d2465b512322de500ad",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/commit/977a1fb169441e35996a1d2465b512322de500ad"
}
],
"source": {
"advisory": "GHSA-fp25-p6mj-qqg6",
"discovery": "UNKNOWN"
},
"title": "Locutus: Remote Code Execution (RCE) in locutus call_user_func_array due to Code Injection"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-29091",
"datePublished": "2026-03-06T17:48:10.442Z",
"dateReserved": "2026-03-03T21:54:06.707Z",
"dateUpdated": "2026-06-30T12:07:52.969Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-25521 (GCVE-0-2026-25521)
Vulnerability from nvd – Published: 2026-02-04 21:20 – Updated: 2026-06-29 12:34
VLAI
Title
Locutus is vulnerable to Prototype Pollution
Summary
Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. In versions from 2.0.12 to before 2.0.39, a prototype pollution vulnerability exists in locutus. Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using String.prototype. This issue has been patched in version 2.0.39.
Severity
9.3 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/locutusjs/locutus/security/adv… | x_refsource_CONFIRM |
| https://github.com/locutusjs/locutus/commit/042af… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-25521 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2436950 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| locutusjs | locutus |
Affected:
>= 2.0.12, < 2.0.39
|
|
| Red Hat | Logging Subsystem for Red Hat OpenShift |
cpe:/a:redhat:logging:5 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-25521",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-05T14:23:07.184247Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-05T14:31:43.203Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"cpes": [
"cpe:/a:redhat:logging:5"
],
"defaultStatus": "unaffected",
"product": "Logging Subsystem for Red Hat OpenShift",
"vendor": "Red Hat"
}
],
"datePublic": "2026-02-04T21:20:32.643Z",
"descriptions": [
{
"lang": "en",
"value": "A prototype pollution flaw has been discovered in the Locutus npm library. Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using String.prototype."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Critical"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-915",
"description": "Improperly Controlled Modification of Dynamically-Determined Object Attributes",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-29T12:34:15.721Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-25521"
},
{
"name": "RHBZ#2436950",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2436950"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25521.json"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-02-04T22:01:35.989Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-02-04T21:20:32.643Z",
"value": "Made public."
}
],
"title": "locutus: Locutus is vulnerable to Prototype Pollution",
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"product": "locutus",
"vendor": "locutusjs",
"versions": [
{
"status": "affected",
"version": "\u003e= 2.0.12, \u003c 2.0.39"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. In versions from 2.0.12 to before 2.0.39, a prototype pollution vulnerability exists in locutus. Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using String.prototype. This issue has been patched in version 2.0.39."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "LOCAL",
"baseScore": 9.4,
"baseSeverity": "CRITICAL",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1321",
"description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-04T21:20:32.643Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/locutusjs/locutus/security/advisories/GHSA-rxrv-835q-v5mh",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-rxrv-835q-v5mh"
},
{
"name": "https://github.com/locutusjs/locutus/commit/042af9ca7fde2ff599120783e720a17f335bb01c",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/commit/042af9ca7fde2ff599120783e720a17f335bb01c"
}
],
"source": {
"advisory": "GHSA-rxrv-835q-v5mh",
"discovery": "UNKNOWN"
},
"title": "Locutus is vulnerable to Prototype Pollution"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-25521",
"datePublished": "2026-02-04T21:20:32.643Z",
"dateReserved": "2026-02-02T18:21:42.487Z",
"dateUpdated": "2026-06-29T12:34:15.721Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-33994 (GCVE-0-2026-33994)
Vulnerability from cvelistv5 – Published: 2026-03-27 22:15 – Updated: 2026-04-01 13:45
VLAI
Title
Locutus Prototype Pollution due to incomplete fix for CVE-2026-25521
Summary
Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Starting in version 2.0.39 and prior to version 3.0.25, a prototype pollution vulnerability exists in the `parse_str` function of the npm package locutus. An attacker can pollute `Object.prototype` by overriding `RegExp.prototype.test` and then passing a crafted query string to `parse_str`, bypassing the prototype pollution guard. This vulnerability stems from an incomplete fix for CVE-2026-25521. The CVE-2026-25521 patch replaced the `String.prototype.includes()`-based guard with a `RegExp.prototype.test()`-based guard. However, `RegExp.prototype.test` is itself a writable prototype method that can be overridden, making the new guard bypassable in the same way as the original — trading one hijackable built-in for another. Version 3.0.25 contains an updated fix.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/locutusjs/locutus/security/adv… | x_refsource_CONFIRM |
| https://github.com/locutusjs/locutus/pull/597 | x_refsource_MISC |
| https://github.com/locutusjs/locutus/commit/345a6… | x_refsource_MISC |
| https://github.com/locutusjs/locutus/releases/tag… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-33994",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-01T13:45:33.039333Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-01T13:45:55.451Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "locutus",
"vendor": "locutusjs",
"versions": [
{
"status": "affected",
"version": "\u003e= 2.0.39, \u003c 3.0.25"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Starting in version 2.0.39 and prior to version 3.0.25, a prototype pollution vulnerability exists in the `parse_str` function of the npm package locutus. An attacker can pollute `Object.prototype` by overriding `RegExp.prototype.test` and then passing a crafted query string to `parse_str`, bypassing the prototype pollution guard. This vulnerability stems from an incomplete fix for CVE-2026-25521. The CVE-2026-25521 patch replaced the `String.prototype.includes()`-based guard with a `RegExp.prototype.test()`-based guard. However, `RegExp.prototype.test` is itself a writable prototype method that can be overridden, making the new guard bypassable in the same way as the original \u2014 trading one hijackable built-in for another. Version 3.0.25 contains an updated fix."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1321",
"description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-27T22:15:47.131Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/locutusjs/locutus/security/advisories/GHSA-vc8f-x9pp-wf5p",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-vc8f-x9pp-wf5p"
},
{
"name": "https://github.com/locutusjs/locutus/security/advisories/GHSA-vc8f-x9pp-wf5p",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-vc8f-x9pp-wf5p"
},
{
"name": "https://github.com/locutusjs/locutus/pull/597",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/pull/597"
},
{
"name": "https://github.com/locutusjs/locutus/commit/345a6211e1e6f939f96a7090bfeff642c9fcf9e4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/commit/345a6211e1e6f939f96a7090bfeff642c9fcf9e4"
},
{
"name": "https://github.com/locutusjs/locutus/releases/tag/v3.0.25",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/releases/tag/v3.0.25"
}
],
"source": {
"advisory": "GHSA-vc8f-x9pp-wf5p",
"discovery": "UNKNOWN"
},
"title": "Locutus Prototype Pollution due to incomplete fix for CVE-2026-25521"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-33994",
"datePublished": "2026-03-27T22:15:47.131Z",
"dateReserved": "2026-03-24T22:20:06.212Z",
"dateUpdated": "2026-04-01T13:45:55.451Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-33993 (GCVE-0-2026-33993)
Vulnerability from cvelistv5 – Published: 2026-03-27 22:14 – Updated: 2026-03-30 15:45
VLAI
Title
Locutus has Prototype Pollution via __proto__ Key Injection in unserialize()
Summary
Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to version 3.0.25, the `unserialize()` function in `locutus/php/var/unserialize` assigns deserialized keys to plain objects via bracket notation without filtering the `__proto__` key. When a PHP serialized payload contains `__proto__` as an array or object key, JavaScript's `__proto__` setter is invoked, replacing the deserialized object's prototype with attacker-controlled content. This enables property injection, for...in propagation of injected properties, and denial of service via built-in method override. This is distinct from the previously reported prototype pollution in `parse_str` (GHSA-f98m-q3hr-p5wq, GHSA-rxrv-835q-v5mh) — `unserialize` is a different function with no mitigation applied. Version 3.0.25 patches the issue.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/locutusjs/locutus/security/adv… | x_refsource_CONFIRM |
| https://github.com/locutusjs/locutus/pull/597 | x_refsource_MISC |
| https://github.com/locutusjs/locutus/commit/345a6… | x_refsource_MISC |
| https://github.com/locutusjs/locutus/releases/tag… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-33993",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-30T15:45:05.433846Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-30T15:45:18.660Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "locutus",
"vendor": "locutusjs",
"versions": [
{
"status": "affected",
"version": "\u003c 3.0.25"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to version 3.0.25, the `unserialize()` function in `locutus/php/var/unserialize` assigns deserialized keys to plain objects via bracket notation without filtering the `__proto__` key. When a PHP serialized payload contains `__proto__` as an array or object key, JavaScript\u0027s `__proto__` setter is invoked, replacing the deserialized object\u0027s prototype with attacker-controlled content. This enables property injection, for...in propagation of injected properties, and denial of service via built-in method override. This is distinct from the previously reported prototype pollution in `parse_str` (GHSA-f98m-q3hr-p5wq, GHSA-rxrv-835q-v5mh) \u2014 `unserialize` is a different function with no mitigation applied. Version 3.0.25 patches the issue."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1321",
"description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-27T22:14:03.495Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/locutusjs/locutus/security/advisories/GHSA-4mph-v827-f877",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-4mph-v827-f877"
},
{
"name": "https://github.com/locutusjs/locutus/pull/597",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/pull/597"
},
{
"name": "https://github.com/locutusjs/locutus/commit/345a6211e1e6f939f96a7090bfeff642c9fcf9e4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/commit/345a6211e1e6f939f96a7090bfeff642c9fcf9e4"
},
{
"name": "https://github.com/locutusjs/locutus/releases/tag/v3.0.25",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/releases/tag/v3.0.25"
}
],
"source": {
"advisory": "GHSA-4mph-v827-f877",
"discovery": "UNKNOWN"
},
"title": "Locutus has Prototype Pollution via __proto__ Key Injection in unserialize()"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-33993",
"datePublished": "2026-03-27T22:14:03.495Z",
"dateReserved": "2026-03-24T22:20:06.212Z",
"dateUpdated": "2026-03-30T15:45:18.660Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-32304 (GCVE-0-2026-32304)
Vulnerability from cvelistv5 – Published: 2026-03-12 21:24 – Updated: 2026-06-30 12:07
VLAI
Title
Locutus: RCE via unsanitized input in create_function()
Summary
Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to 3.0.14, the create_function(args, code) function passes both parameters directly to the Function constructor without any sanitization, allowing arbitrary code execution. This is distinct from CVE-2026-29091 which was call_user_func_array using eval() in v2.x. This finding affects create_function using new Function() in v3.x. This vulnerability is fixed in 3.0.14.
Severity
9.8 (Critical)
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/locutusjs/locutus/security/adv… | x_refsource_CONFIRM |
| https://github.com/locutusjs/locutus/releases/tag… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-32304 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2447200 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| locutusjs | locutus |
Affected:
< 3.0.14
|
|
| Red Hat | Logging Subsystem for Red Hat OpenShift |
cpe:/a:redhat:logging:5 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-32304",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-13T13:12:02.296127Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-13T13:12:13.553Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"cpes": [
"cpe:/a:redhat:logging:5"
],
"defaultStatus": "affected",
"product": "Logging Subsystem for Red Hat OpenShift",
"vendor": "Red Hat"
}
],
"datePublic": "2026-03-12T21:24:51.730Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in Locutus, a JavaScript library that provides standard library functions. The `create_function` function in Locutus passes user-supplied arguments and code directly to the JavaScript `Function` constructor without proper sanitization. This vulnerability allows a remote attacker to execute arbitrary code within the application, potentially leading to full system compromise or data manipulation."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-88",
"description": "Improper Neutralization of Argument Delimiters in a Command (\u0027Argument Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-30T12:07:44.328Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-32304"
},
{
"name": "RHBZ#2447200",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2447200"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32304.json"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-12T22:01:47.245Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-03-12T21:24:51.730Z",
"value": "Made public."
}
],
"title": "locutusjs: Locutus: Arbitrary code execution via unsanitized parameters in create_function",
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"product": "locutus",
"vendor": "locutusjs",
"versions": [
{
"status": "affected",
"version": "\u003c 3.0.14"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to 3.0.14, the create_function(args, code) function passes both parameters directly to the Function constructor without any sanitization, allowing arbitrary code execution. This is distinct from CVE-2026-29091 which was call_user_func_array using eval() in v2.x. This finding affects create_function using new Function() in v3.x. This vulnerability is fixed in 3.0.14."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-94",
"description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-12T21:24:51.730Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/locutusjs/locutus/security/advisories/GHSA-vh9h-29pq-r5m8",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-vh9h-29pq-r5m8"
},
{
"name": "https://github.com/locutusjs/locutus/releases/tag/v3.0.14",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/releases/tag/v3.0.14"
}
],
"source": {
"advisory": "GHSA-vh9h-29pq-r5m8",
"discovery": "UNKNOWN"
},
"title": "Locutus: RCE via unsanitized input in create_function()"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-32304",
"datePublished": "2026-03-12T21:24:51.730Z",
"dateReserved": "2026-03-11T21:16:21.659Z",
"dateUpdated": "2026-06-30T12:07:44.328Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-29091 (GCVE-0-2026-29091)
Vulnerability from cvelistv5 – Published: 2026-03-06 17:48 – Updated: 2026-06-30 12:07
VLAI
Title
Locutus: Remote Code Execution (RCE) in locutus call_user_func_array due to Code Injection
Summary
Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to version 3.0.0, a remote code execution (RCE) flaw was discovered in the locutus project, specifically within the call_user_func_array function implementation. The vulnerability allows an attacker to inject arbitrary JavaScript code into the application's runtime environment. This issue stems from an insecure implementation of the call_user_func_array function (and its wrapper call_user_func), which fails to properly validate all components of a callback array before passing them to eval(). This issue has been patched in version 3.0.0.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/locutusjs/locutus/security/adv… | x_refsource_CONFIRM |
| https://github.com/locutusjs/locutus/commit/977a1… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-29091 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2445262 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| locutusjs | locutus |
Affected:
< 3.0.0
|
|
| Red Hat | Logging Subsystem for Red Hat OpenShift |
cpe:/a:redhat:logging:5 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-29091",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-06T18:34:23.537452Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-06T18:34:27.477Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-fp25-p6mj-qqg6"
}
],
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"cpes": [
"cpe:/a:redhat:logging:5"
],
"defaultStatus": "affected",
"product": "Logging Subsystem for Red Hat OpenShift",
"vendor": "Red Hat"
}
],
"datePublic": "2026-03-06T17:48:10.442Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in Locutus, a project that brings standard libraries of other programming languages to JavaScript. A remote attacker could exploit an insecure implementation of the `call_user_func_array` function, which fails to properly validate all components of a callback array before passing them to the eval method. This vulnerability allows the attacker to inject arbitrary JavaScript code into the application\u0027s runtime environment, leading to remote code execution."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-94",
"description": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-30T12:07:52.969Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-29091"
},
{
"name": "RHBZ#2445262",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2445262"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29091.json"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-06T18:01:08.561Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-03-06T17:48:10.442Z",
"value": "Made public."
}
],
"title": "locutus: Locutus: Remote Code Execution via insecure callback function implementation",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
}
],
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"product": "locutus",
"vendor": "locutusjs",
"versions": [
{
"status": "affected",
"version": "\u003c 3.0.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to version 3.0.0, a remote code execution (RCE) flaw was discovered in the locutus project, specifically within the call_user_func_array function implementation. The vulnerability allows an attacker to inject arbitrary JavaScript code into the application\u0027s runtime environment. This issue stems from an insecure implementation of the call_user_func_array function (and its wrapper call_user_func), which fails to properly validate all components of a callback array before passing them to eval(). This issue has been patched in version 3.0.0."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-95",
"description": "CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code (\u0027Eval Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-06T17:48:10.442Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/locutusjs/locutus/security/advisories/GHSA-fp25-p6mj-qqg6",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-fp25-p6mj-qqg6"
},
{
"name": "https://github.com/locutusjs/locutus/commit/977a1fb169441e35996a1d2465b512322de500ad",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/commit/977a1fb169441e35996a1d2465b512322de500ad"
}
],
"source": {
"advisory": "GHSA-fp25-p6mj-qqg6",
"discovery": "UNKNOWN"
},
"title": "Locutus: Remote Code Execution (RCE) in locutus call_user_func_array due to Code Injection"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-29091",
"datePublished": "2026-03-06T17:48:10.442Z",
"dateReserved": "2026-03-03T21:54:06.707Z",
"dateUpdated": "2026-06-30T12:07:52.969Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-25521 (GCVE-0-2026-25521)
Vulnerability from cvelistv5 – Published: 2026-02-04 21:20 – Updated: 2026-06-29 12:34
VLAI
Title
Locutus is vulnerable to Prototype Pollution
Summary
Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. In versions from 2.0.12 to before 2.0.39, a prototype pollution vulnerability exists in locutus. Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using String.prototype. This issue has been patched in version 2.0.39.
Severity
9.3 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/locutusjs/locutus/security/adv… | x_refsource_CONFIRM |
| https://github.com/locutusjs/locutus/commit/042af… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-25521 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2436950 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| locutusjs | locutus |
Affected:
>= 2.0.12, < 2.0.39
|
|
| Red Hat | Logging Subsystem for Red Hat OpenShift |
cpe:/a:redhat:logging:5 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-25521",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-05T14:23:07.184247Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-05T14:31:43.203Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"cpes": [
"cpe:/a:redhat:logging:5"
],
"defaultStatus": "unaffected",
"product": "Logging Subsystem for Red Hat OpenShift",
"vendor": "Red Hat"
}
],
"datePublic": "2026-02-04T21:20:32.643Z",
"descriptions": [
{
"lang": "en",
"value": "A prototype pollution flaw has been discovered in the Locutus npm library. Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using String.prototype."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Critical"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-915",
"description": "Improperly Controlled Modification of Dynamically-Determined Object Attributes",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-29T12:34:15.721Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-25521"
},
{
"name": "RHBZ#2436950",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2436950"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25521.json"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-02-04T22:01:35.989Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-02-04T21:20:32.643Z",
"value": "Made public."
}
],
"title": "locutus: Locutus is vulnerable to Prototype Pollution",
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"product": "locutus",
"vendor": "locutusjs",
"versions": [
{
"status": "affected",
"version": "\u003e= 2.0.12, \u003c 2.0.39"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. In versions from 2.0.12 to before 2.0.39, a prototype pollution vulnerability exists in locutus. Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using String.prototype. This issue has been patched in version 2.0.39."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "LOCAL",
"baseScore": 9.4,
"baseSeverity": "CRITICAL",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1321",
"description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-04T21:20:32.643Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/locutusjs/locutus/security/advisories/GHSA-rxrv-835q-v5mh",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/locutusjs/locutus/security/advisories/GHSA-rxrv-835q-v5mh"
},
{
"name": "https://github.com/locutusjs/locutus/commit/042af9ca7fde2ff599120783e720a17f335bb01c",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/locutusjs/locutus/commit/042af9ca7fde2ff599120783e720a17f335bb01c"
}
],
"source": {
"advisory": "GHSA-rxrv-835q-v5mh",
"discovery": "UNKNOWN"
},
"title": "Locutus is vulnerable to Prototype Pollution"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-25521",
"datePublished": "2026-02-04T21:20:32.643Z",
"dateReserved": "2026-02-02T18:21:42.487Z",
"dateUpdated": "2026-06-29T12:34:15.721Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}