Search
Find a vulnerability
Search criteria
4 vulnerabilities found for net/http/internal by Go standard library
CVE-2025-22871 (GCVE-0-2025-22871)
Vulnerability from nvd – Published: 2025-04-08 20:04 – Updated: 2026-05-12 12:04
VLAI
Title
Request smuggling due to acceptance of invalid chunked data in net/http
Summary
The net/http package improperly accepts a bare LF as a line terminator in chunked data chunk-size lines. This can permit request smuggling if a net/http server is used in conjunction with a server that incorrectly accepts a bare LF as part of a chunk-ext.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http/internal |
Affected:
0 , < 1.23.8
(semver)
Affected: 1.24.0-0 , < 1.24.2 (semver) |
|
| Siemens | SENTRON 7KT PAC1261 Data Manager |
Affected:
0 , < V2.1.0
(custom)
|
Credits
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-04-08T21:03:21.913Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2025/04/04/4"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"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:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2025-22871",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-18T14:57:03.151639Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-04-18T14:57:31.331Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "SENTRON 7KT PAC1261 Data Manager",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.1.0",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-12T12:04:11.015Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-783943.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "net/http/internal",
"product": "net/http/internal",
"programRoutines": [
{
"name": "readChunkLine"
},
{
"name": "chunkedReader.Read"
}
],
"vendor": "Go standard library",
"versions": [
{
"lessThan": "1.23.8",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "1.24.2",
"status": "affected",
"version": "1.24.0-0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Jeppe Bonde Weikop"
}
],
"descriptions": [
{
"lang": "en",
"value": "The net/http package improperly accepts a bare LF as a line terminator in chunked data chunk-size lines. This can permit request smuggling if a net/http server is used in conjunction with a server that incorrectly accepts a bare LF as part of a chunk-ext."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-444: Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request Smuggling\u0027)",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-04-08T20:04:34.769Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://go.dev/cl/652998"
},
{
"url": "https://go.dev/issue/71988"
},
{
"url": "https://groups.google.com/g/golang-announce/c/Y2uBTVKjBQk"
},
{
"url": "https://pkg.go.dev/vuln/GO-2025-3563"
}
],
"title": "Request smuggling due to acceptance of invalid chunked data in net/http"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2025-22871",
"datePublished": "2025-04-08T20:04:34.769Z",
"dateReserved": "2025-01-08T19:11:42.834Z",
"dateUpdated": "2026-05-12T12:04:11.015Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2023-39326 (GCVE-0-2023-39326)
Vulnerability from nvd – Published: 2023-12-06 16:27 – Updated: 2025-02-13 17:02
VLAI
Title
Denial of service via chunk extensions in net/http
Summary
A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small.
Severity
No CVSS data available.
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http/internal |
Affected:
0 , < 1.20.12
(semver)
Affected: 1.21.0-0 , < 1.21.5 (semver) |
Credits
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T18:02:06.808Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://go.dev/issue/64433"
},
{
"tags": [
"x_transferred"
],
"url": "https://go.dev/cl/547335"
},
{
"tags": [
"x_transferred"
],
"url": "https://groups.google.com/g/golang-dev/c/6ypN5EjibjM/m/KmLVYH_uAgAJ"
},
{
"tags": [
"x_transferred"
],
"url": "https://pkg.go.dev/vuln/GO-2023-2382"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UIU6HOGV6RRIKWM57LOXQA75BGZSIH6G/"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "net/http/internal",
"product": "net/http/internal",
"programRoutines": [
{
"name": "chunkedReader.beginChunk"
},
{
"name": "readChunkLine"
},
{
"name": "chunkedReader.Read"
}
],
"vendor": "Go standard library",
"versions": [
{
"lessThan": "1.20.12",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "1.21.5",
"status": "affected",
"version": "1.21.0-0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Bartek Nowotarski"
}
],
"descriptions": [
{
"lang": "en",
"value": "A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-400: Uncontrolled Resource Consumption",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-01-20T04:06:26.754Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://go.dev/issue/64433"
},
{
"url": "https://go.dev/cl/547335"
},
{
"url": "https://groups.google.com/g/golang-dev/c/6ypN5EjibjM/m/KmLVYH_uAgAJ"
},
{
"url": "https://pkg.go.dev/vuln/GO-2023-2382"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UIU6HOGV6RRIKWM57LOXQA75BGZSIH6G/"
}
],
"title": "Denial of service via chunk extensions in net/http"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2023-39326",
"datePublished": "2023-12-06T16:27:53.832Z",
"dateReserved": "2023-07-27T17:05:55.188Z",
"dateUpdated": "2025-02-13T17:02:50.990Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2025-22871 (GCVE-0-2025-22871)
Vulnerability from cvelistv5 – Published: 2025-04-08 20:04 – Updated: 2026-05-12 12:04
VLAI
Title
Request smuggling due to acceptance of invalid chunked data in net/http
Summary
The net/http package improperly accepts a bare LF as a line terminator in chunked data chunk-size lines. This can permit request smuggling if a net/http server is used in conjunction with a server that incorrectly accepts a bare LF as part of a chunk-ext.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http/internal |
Affected:
0 , < 1.23.8
(semver)
Affected: 1.24.0-0 , < 1.24.2 (semver) |
|
| Siemens | SENTRON 7KT PAC1261 Data Manager |
Affected:
0 , < V2.1.0
(custom)
|
Credits
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-04-08T21:03:21.913Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2025/04/04/4"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"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:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2025-22871",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-18T14:57:03.151639Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-04-18T14:57:31.331Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "SENTRON 7KT PAC1261 Data Manager",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.1.0",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-12T12:04:11.015Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-783943.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "net/http/internal",
"product": "net/http/internal",
"programRoutines": [
{
"name": "readChunkLine"
},
{
"name": "chunkedReader.Read"
}
],
"vendor": "Go standard library",
"versions": [
{
"lessThan": "1.23.8",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "1.24.2",
"status": "affected",
"version": "1.24.0-0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Jeppe Bonde Weikop"
}
],
"descriptions": [
{
"lang": "en",
"value": "The net/http package improperly accepts a bare LF as a line terminator in chunked data chunk-size lines. This can permit request smuggling if a net/http server is used in conjunction with a server that incorrectly accepts a bare LF as part of a chunk-ext."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-444: Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request Smuggling\u0027)",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-04-08T20:04:34.769Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://go.dev/cl/652998"
},
{
"url": "https://go.dev/issue/71988"
},
{
"url": "https://groups.google.com/g/golang-announce/c/Y2uBTVKjBQk"
},
{
"url": "https://pkg.go.dev/vuln/GO-2025-3563"
}
],
"title": "Request smuggling due to acceptance of invalid chunked data in net/http"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2025-22871",
"datePublished": "2025-04-08T20:04:34.769Z",
"dateReserved": "2025-01-08T19:11:42.834Z",
"dateUpdated": "2026-05-12T12:04:11.015Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2023-39326 (GCVE-0-2023-39326)
Vulnerability from cvelistv5 – Published: 2023-12-06 16:27 – Updated: 2025-02-13 17:02
VLAI
Title
Denial of service via chunk extensions in net/http
Summary
A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small.
Severity
No CVSS data available.
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http/internal |
Affected:
0 , < 1.20.12
(semver)
Affected: 1.21.0-0 , < 1.21.5 (semver) |
Credits
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T18:02:06.808Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://go.dev/issue/64433"
},
{
"tags": [
"x_transferred"
],
"url": "https://go.dev/cl/547335"
},
{
"tags": [
"x_transferred"
],
"url": "https://groups.google.com/g/golang-dev/c/6ypN5EjibjM/m/KmLVYH_uAgAJ"
},
{
"tags": [
"x_transferred"
],
"url": "https://pkg.go.dev/vuln/GO-2023-2382"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UIU6HOGV6RRIKWM57LOXQA75BGZSIH6G/"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "net/http/internal",
"product": "net/http/internal",
"programRoutines": [
{
"name": "chunkedReader.beginChunk"
},
{
"name": "readChunkLine"
},
{
"name": "chunkedReader.Read"
}
],
"vendor": "Go standard library",
"versions": [
{
"lessThan": "1.20.12",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "1.21.5",
"status": "affected",
"version": "1.21.0-0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Bartek Nowotarski"
}
],
"descriptions": [
{
"lang": "en",
"value": "A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-400: Uncontrolled Resource Consumption",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-01-20T04:06:26.754Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://go.dev/issue/64433"
},
{
"url": "https://go.dev/cl/547335"
},
{
"url": "https://groups.google.com/g/golang-dev/c/6ypN5EjibjM/m/KmLVYH_uAgAJ"
},
{
"url": "https://pkg.go.dev/vuln/GO-2023-2382"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UIU6HOGV6RRIKWM57LOXQA75BGZSIH6G/"
}
],
"title": "Denial of service via chunk extensions in net/http"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2023-39326",
"datePublished": "2023-12-06T16:27:53.832Z",
"dateReserved": "2023-07-27T17:05:55.188Z",
"dateUpdated": "2025-02-13T17:02:50.990Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}