CVE-2025-25294

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

E

nvoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. In all Envoy Gateway versions prior to 1.2.7 and 1.3.1 a default Envoy Proxy access log configuration is used. This format is vulnerable to log injection attacks. If the attacker uses a specially crafted user-agent which performs json injection, then he could add and overwrite fields to the access log. This vulnerability is fixed in 1.3.1 and 1.2.7. One can overwrite the old text based default format with JSON formatter by modifying the "EnvoyProxy.spec.telemetry.accessLog" setting.

References

Link	Resource
https://github.com/envoyproxy/gateway/commit/8f48f5199cf1bbb9a8ac0695c5171bfef6c9198a	Patch
https://github.com/envoyproxy/gateway/security/advisories/GHSA-mf24-chxh-hmvj	Third Party Advisory Mitigation

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:envoyproxy:gateway::::::::
	cpe:2.3:a:envoyproxy:gateway::::::::

History

04 Sep 2025, 13:52

Type	Values Removed	Values Added
CPE		cpe:2.3:a:envoyproxy:gateway::::::::
First Time		Envoyproxy Envoyproxy gateway
References	~~() https://github.com/envoyproxy/gateway/commit/8f48f5199cf1bbb9a8ac0695c5171bfef6c9198a -~~	() https://github.com/envoyproxy/gateway/commit/8f48f5199cf1bbb9a8ac0695c5171bfef6c9198a - Patch
References	~~() https://github.com/envoyproxy/gateway/security/advisories/GHSA-mf24-chxh-hmvj -~~	() https://github.com/envoyproxy/gateway/security/advisories/GHSA-mf24-chxh-hmvj - Third Party Advisory, Mitigation

06 Mar 2025, 19:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-03-06 19:15

Updated : 2025-09-04 13:52

NVD link : CVE-2025-25294

Mitre link : CVE-2025-25294

CVE.ORG link : CVE-2025-25294

JSON object : View

Products Affected

gateway

CWE

CWE-117

Improper Output Neutralization for Logs

{"id": "CVE-2025-25294", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2025-03-06T19:15:27.267", "references": [{"url": "https://github.com/envoyproxy/gateway/commit/8f48f5199cf1bbb9a8ac0695c5171bfef6c9198a", "tags": ["Patch"], "source": "[email protected]"}, {"url": "https://github.com/envoyproxy/gateway/security/advisories/GHSA-mf24-chxh-hmvj", "tags": ["Third Party Advisory", "Mitigation"], "source": "[email protected]"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-117"}]}], "descriptions": [{"lang": "en", "value": "Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. In all Envoy Gateway versions prior to 1.2.7 and 1.3.1 a default Envoy Proxy access log configuration is used. This format is vulnerable to log injection attacks. If the attacker uses a specially crafted user-agent which performs json injection, then he could add and overwrite fields to the access log. This vulnerability is fixed in 1.3.1 and 1.2.7. One can overwrite the old text based default format with JSON formatter by modifying the \"EnvoyProxy.spec.telemetry.accessLog\" setting."}, {"lang": "es", "value": "Envoy Gateway es un proyecto de c\u00f3digo abierto para administrar Envoy Proxy como una puerta de enlace de aplicaciones independiente o basada en Kubernetes. En todas las versiones de Envoy Gateway anteriores a 1.2.7 y 1.3.1 se utiliza una configuraci\u00f3n de registro de acceso de Envoy Proxy predeterminada. Este formato es vulnerable a ataques de inyecci\u00f3n de registros. Si el atacante utiliza un agente de usuario especialmente manipulado que realiza una inyecci\u00f3n JSON, podr\u00eda agregar y sobrescribir campos en el registro de acceso. Esta vulnerabilidad se solucion\u00f3 en 1.3.1 y 1.2.7. Se puede sobrescribir el antiguo formato predeterminado basado en texto con el formateador JSON modificando la configuraci\u00f3n \"EnvoyProxy.spec.telemetry.accessLog\"."}], "lastModified": "2025-09-04T13:52:34.993", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:envoyproxy:gateway:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6993284B-B381-40CA-83B2-A03F3AB4664A", "versionEndExcluding": "1.2.7"}, {"criteria": "cpe:2.3:a:envoyproxy:gateway:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "200AFC8A-EE02-46F6-A8F2-AE6D222921BE", "versionEndExcluding": "1.3.1", "versionStartIncluding": "1.3.0"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}