fkie_cve-2025-46821
Vulnerability from fkie_nvd
Published
2025-05-07 22:15
Modified
2025-05-08 14:39
Severity ?
Summary
Envoy is a cloud-native edge/middle/service proxy. Prior to versions 1.34.1, 1.33.3, 1.32.6, and 1.31.8, Envoy's URI template matcher incorrectly excludes the `*` character from a set of valid characters in the URI path. As a result URI path containing the `*` character will not match a URI template expressions. This can result in bypass of RBAC rules when configured using the `uri_template` permissions. This vulnerability is fixed in Envoy versions v1.34.1, v1.33.3, v1.32.6, v1.31.8. As a workaround, configure additional RBAC permissions using `url_path` with `safe_regex` expression.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Envoy is a cloud-native edge/middle/service proxy. Prior to versions 1.34.1, 1.33.3, 1.32.6, and 1.31.8, Envoy\u0027s URI template matcher incorrectly excludes the `*` character from a set of valid characters in the URI path. As a result URI path containing the `*` character will not match a URI template expressions. This can result in bypass of RBAC rules when configured using the `uri_template` permissions. This vulnerability is fixed in Envoy versions v1.34.1, v1.33.3, v1.32.6, v1.31.8. As a workaround, configure additional RBAC permissions using `url_path` with `safe_regex` expression."
},
{
"lang": "es",
"value": "Envoy es un proxy de borde, intermedio y de servicio nativo de la nube. En versiones anteriores a las 1.34.1, 1.33.3, 1.32.6 y 1.31.8, el comparador de plantillas de URI de Envoy exclu\u00eda incorrectamente el car\u00e1cter `*` de un conjunto de caracteres v\u00e1lidos en la ruta de URI. Como resultado, una ruta de URI que contenga el car\u00e1cter `*` no coincidir\u00e1 con las expresiones de plantilla de URI. Esto puede provocar la omisi\u00f3n de las reglas RBAC al configurarse con los permisos `uri_template`. Esta vulnerabilidad se ha corregido en las versiones 1.34.1, 1.33.3, 1.32.6 y 1.31.8 de Envoy. Como workaround, configure permisos RBAC adicionales mediante `url_path` con la expresi\u00f3n `safe_regex`."
}
],
"id": "CVE-2025-46821",
"lastModified": "2025-05-08T14:39:09.683",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
},
"published": "2025-05-07T22:15:21.170",
"references": [
{
"source": "security-advisories@github.com",
"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-c7cm-838g-6g67"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-186"
}
],
"source": "security-advisories@github.com",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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