CVE-2025-32379

Koa is expressive middleware for Node.js using ES2017 async functions. In koa < 2.16.1 and < 3.0.0-alpha.5, passing untrusted user input to ctx.redirect() even after sanitizing it, may execute javascript code on the user who use the app. This issue is patched in 2.16.1 and 3.0.0-alpha.5.

CVSS v3 5.0 MEDIUM

5.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/koajs/koa/commit/ff25eb4a7f2392df46481fe86355161067687312	Patch
https://github.com/koajs/koa/security/advisories/GHSA-x2rg-q646-7m2v	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:koajs:koa::::::node.js::*
	cpe:2.3:a:koajs:koa:3.0.0:alpha0::::node.js::*
	cpe:2.3:a:koajs:koa:3.0.0:alpha1::::node.js::*
	cpe:2.3:a:koajs:koa:3.0.0:alpha2::::node.js::*
	cpe:2.3:a:koajs:koa:3.0.0:alpha3::::node.js::*
	cpe:2.3:a:koajs:koa:3.0.0:alpha4::::node.js::*

History

No history.

Information

Published : 2025-04-09 16:15

Updated : 2026-01-14 14:36

NVD link : CVE-2025-32379

Mitre link : CVE-2025-32379

CVE.ORG link : CVE-2025-32379

JSON object : View

Products Affected

koajs

koa

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

{"id": "CVE-2025-32379", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.0, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 1.6}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}]}, "published": "2025-04-09T16:15:25.903", "references": [{"url": "https://github.com/koajs/koa/commit/ff25eb4a7f2392df46481fe86355161067687312", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/koajs/koa/security/advisories/GHSA-x2rg-q646-7m2v", "tags": ["Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Koa is expressive middleware for Node.js using ES2017 async functions. In koa < 2.16.1 and < 3.0.0-alpha.5, passing untrusted user input to ctx.redirect() even after sanitizing it, may execute javascript code on the user who use the app. This issue is patched in 2.16.1 and 3.0.0-alpha.5."}, {"lang": "es", "value": "Koa es un middleware expresivo para Node.js que utiliza funciones as\u00edncronas de ES2017. En koa anteriores a la 2.16.1 y a la 3.0.0-alpha.5, pasar informaci\u00f3n de usuario no confiable a ctx.redirect(), incluso despu\u00e9s de depurarla, puede ejecutar c\u00f3digo JavaScript en el usuario que usa la aplicaci\u00f3n. Este problema se ha corregido en las versiones 2.16.1 y 3.0.0-alpha.5."}], "lastModified": "2026-01-14T14:36:06.413", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:koajs:koa:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "A275ECA9-DD3D-460D-A7C5-713F4E20C786", "versionEndExcluding": "2.16.1"}, {"criteria": "cpe:2.3:a:koajs:koa:3.0.0:alpha0:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "C939FF76-3FDC-4439-8794-4DFC390B6AE5"}, {"criteria": "cpe:2.3:a:koajs:koa:3.0.0:alpha1:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "6C0F27D9-2CCD-4CA4-BB80-3650CA1CC7D7"}, {"criteria": "cpe:2.3:a:koajs:koa:3.0.0:alpha2:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "AC7C1D95-EC40-445D-A46D-5B52C771E9EE"}, {"criteria": "cpe:2.3:a:koajs:koa:3.0.0:alpha3:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "1CB59D3F-CD0C-46FB-92E6-A57B5309690E"}, {"criteria": "cpe:2.3:a:koajs:koa:3.0.0:alpha4:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "7A156C47-5619-4AF3-B7F2-9BE83A5F8F15"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}