fkie_cve-2025-32431
Vulnerability from fkie_nvd
Published
2025-04-21 16:15
Modified
2025-11-25 15:13
Severity ?
Summary
Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. In versions prior to 2.11.24, 3.3.6, and 3.4.0-rc2. There is a potential vulnerability in Traefik managing the requests using a PathPrefix, Path or PathRegex matcher. When Traefik is configured to route the requests to a backend using a matcher based on the path, if the URL contains a /../ in its path, it’s possible to target a backend, exposed using another router, by-passing the middlewares chain. This issue has been patched in versions 2.11.24, 3.3.6, and 3.4.0-rc2. A workaround involves adding a `PathRegexp` rule to the matcher to prevent matching a route with a `/../` in the path.
References
Impacted products
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*",
"matchCriteriaId": "04105DE7-39D3-4C4D-9B00-BEA0E4CC3718",
"versionEndExcluding": "2.11.24",
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"versionStartIncluding": "3.0.0",
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. In versions prior to 2.11.24, 3.3.6, and 3.4.0-rc2. There is a potential vulnerability in Traefik managing the requests using a PathPrefix, Path or PathRegex matcher. When Traefik is configured to route the requests to a backend using a matcher based on the path, if the URL contains a /../ in its path, it\u2019s possible to target a backend, exposed using another router, by-passing the middlewares chain. This issue has been patched in versions 2.11.24, 3.3.6, and 3.4.0-rc2. A workaround involves adding a `PathRegexp` rule to the matcher to prevent matching a route with a `/../` in the path."
},
{
"lang": "es",
"value": "Traefik (pronunciado \"traffic\") es un proxy inverso HTTP y balanceador de carga. En versiones anteriores a 2.11.24, 3.3.6 y 3.4.0-rc2, existe una vulnerabilidad potencial en Traefik al gestionar las solicitudes mediante un comparador PathPrefix, Path o PathRegex. Cuando Traefik se configura para enrutar las solicitudes a un backend mediante un comparador basado en la ruta, si la URL contiene un /../ en su ruta, es posible dirigirse a un backend expuesto mediante otro enrutador, omitiendo la cadena de middleware. Este problema se ha corregido en las versiones 2.11.24, 3.3.6 y 3.4.0-rc2. Un workaround consiste en a\u00f1adir una regla `PathRegexp` al comparador para evitar que coincida con una ruta que contenga un `/../` en la ruta."
}
],
"id": "CVE-2025-32431",
"lastModified": "2025-11-25T15:13:09.177",
"metrics": {
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"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"
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"exploitabilityScore": 3.9,
"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
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"cvssMetricV40": [
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"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "PROOF_OF_CONCEPT",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
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"source": "security-advisories@github.com",
"type": "Secondary"
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"published": "2025-04-21T16:15:54.610",
"references": [
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"source": "security-advisories@github.com",
"tags": [
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"url": "https://github.com/traefik/traefik/pull/11684"
},
{
"source": "security-advisories@github.com",
"tags": [
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"url": "https://github.com/traefik/traefik/releases/tag/v2.11.24"
},
{
"source": "security-advisories@github.com",
"tags": [
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"url": "https://github.com/traefik/traefik/releases/tag/v3.3.6"
},
{
"source": "security-advisories@github.com",
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"url": "https://github.com/traefik/traefik/releases/tag/v3.4.0-rc2"
},
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"tags": [
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"url": "https://github.com/traefik/traefik/security/advisories/GHSA-6p68-w45g-48j7"
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],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Analyzed",
"weaknesses": [
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"description": [
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"lang": "en",
"value": "CWE-22"
}
],
"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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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