{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-25949", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-02-09T17:13:54.065Z", "datePublished": "2026-02-12T20:01:19.600Z", "dateUpdated": "2026-07-15T01:15:52.166Z" }, "containers": { "cna": { "title": "Traefik: TCP readTimeout bypass via STARTTLS on Postgres", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/traefik/traefik/security/advisories/GHSA-89p3-4642-cr2w", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/traefik/traefik/security/advisories/GHSA-89p3-4642-cr2w" }, { "name": "https://github.com/traefik/traefik/commit/31e566e9f1d7888ccb6fbc18bfed427203c35678", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/traefik/traefik/commit/31e566e9f1d7888ccb6fbc18bfed427203c35678" }, { "name": "https://github.com/traefik/traefik/releases/tag/v3.6.8", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/traefik/traefik/releases/tag/v3.6.8" } ], "affected": [ { "vendor": "traefik", "product": "traefik", "versions": [ { "version": "< 3.6.8", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-02-12T20:01:19.600Z" }, "descriptions": [ { "lang": "en", "value": "Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.8, there is a potential vulnerability in Traefik managing STARTTLS requests. An unauthenticated client can bypass Traefik entrypoint respondingTimeouts.readTimeout by sending the 8-byte Postgres SSLRequest (STARTTLS) prelude and then stalling, causing connections to remain open indefinitely, leading to a denial of service. This vulnerability is fixed in 3.6.8." } ], "source": { "advisory": "GHSA-89p3-4642-cr2w", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-02-12T20:47:57.313606Z", "id": "CVE-2026-25949", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-12T21:16:17.659Z" } }, { "affected": [ { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:openshift_devspaces:3.27::el9" ], "defaultStatus": "affected", "packageName": "devspaces/traefik-rhel9", "product": "Red Hat OpenShift Dev Spaces 3.27", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1774227265", "versionType": "rpm" } ] } ], "datePublic": "2026-02-12T20:01:19.600Z", "descriptions": [ { "lang": "en", "value": "A flaw was found in Traefik, an HTTP reverse proxy and load balancer. An unauthenticated client can exploit this vulnerability by sending a specific 8-byte Postgres SSLRequest (STARTTLS) prelude and then intentionally delaying further communication. This action bypasses Traefik's configured read timeouts, causing connections to remain open indefinitely. The primary consequence is a Denial of Service, as the server's resources become exhausted by these persistent, non-responsive connections." } ], "metrics": [ { "other": { "content": { "namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "format": "CVSS" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-770", "description": "Allocation of Resources Without Limits or Throttling", "lang": "en", "type": "CWE" } ] } ], "references": [ { "tags": [ "vdb-entry", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/security/cve/CVE-2026-25949" }, { "name": "RHBZ#2439522", "tags": [ "issue-tracking", "x_refsource_REDHAT" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2439522" }, { "tags": [ "x_sadp-csaf-vex" ], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25949.json" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:6192" } ], "solutions": [ { "lang": "en", "value": "RHSA-2026:6192: Red Hat OpenShift Dev Spaces 3.27" } ], "timeline": [ { "lang": "en", "time": "2026-02-12T21:01:13.761Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-02-12T20:01:19.600Z", "value": "Made public." } ], "title": "github.com/traefik/traefik: Traefik: Denial of Service via stalled STARTTLS requests", "x_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-07-15T01:15:52.166Z" } } ] } }