{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-85078", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-02T21:21:01.776Z", "datePublished": "2026-09-17T14:28:37.286Z", "dateUpdated": "2026-09-17T14:28:37.286Z"}, "containers": {"cna": {"title": "sanic chunked trailer request smuggling allows hidden second request execution", "problemTypes": [{"descriptions": [{"cweId": "CWE-444", "lang": "en", "description": "CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/sanic-org/sanic/security/advisories/GHSA-wmj6-g64g-j7q5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/sanic-org/sanic/security/advisories/GHSA-wmj6-g64g-j7q5"}, {"name": "https://github.com/sanic-org/sanic/pull/3164", "tags": ["x_refsource_MISC"], "url": "https://github.com/sanic-org/sanic/pull/3164"}, {"name": "https://github.com/sanic-org/sanic/pull/3165", "tags": ["x_refsource_MISC"], "url": "https://github.com/sanic-org/sanic/pull/3165"}, {"name": "https://github.com/sanic-org/sanic/commit/47349d689d65fa1907977ac100e867894aeafb22", "tags": ["x_refsource_MISC"], "url": "https://github.com/sanic-org/sanic/commit/47349d689d65fa1907977ac100e867894aeafb22"}, {"name": "https://github.com/sanic-org/sanic/commit/69a10d3b06babaa9e5f6d1af577364e9e53b6dea", "tags": ["x_refsource_MISC"], "url": "https://github.com/sanic-org/sanic/commit/69a10d3b06babaa9e5f6d1af577364e9e53b6dea"}, {"name": "https://github.com/sanic-org/sanic/commit/a332796506c7c588b6930b02a8886e43eb8ea8d6", "tags": ["x_refsource_MISC"], "url": "https://github.com/sanic-org/sanic/commit/a332796506c7c588b6930b02a8886e43eb8ea8d6"}, {"name": "https://github.com/sanic-org/sanic/releases/tag/v24.12.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/sanic-org/sanic/releases/tag/v24.12.1"}, {"name": "https://github.com/sanic-org/sanic/releases/tag/v25.12.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/sanic-org/sanic/releases/tag/v25.12.1"}], "affected": [{"vendor": "sanic-org", "product": "sanic", "versions": [{"version": "< 24.12.1", "status": "affected"}, {"version": ">= 25.12.0, < 25.12.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-17T14:28:37.286Z"}, "descriptions": [{"lang": "en", "value": "Sanic is an opensource python web server/framework. In version 25.12.0, Sanic's core HTTP/1.1 chunked-body handling does not fully consume the trailer-part after the terminating zero chunk before reusing the keep-alive connection buffer. A remote unauthenticated client can place attacker-controlled bytes in that trailer region, causing Sanic to parse and route them as a hidden second request after the outer request. This breaks HTTP request-boundary integrity and can provide a request-smuggling primitive when Sanic is deployed behind intermediaries. This issue is fixed in version 25.12.1."}], "source": {"advisory": "GHSA-wmj6-g64g-j7q5", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "sanic", "vendor": "sanic-org", "versions": [{"status": "affected", "version": "< 24.12.1"}, {"status": "affected", "version": ">= 25.12.0, < 25.12.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Sanic is an opensource python web server/framework. In version 25.12.0, Sanic's core HTTP/1.1 chunked-body handling does not fully consume the trailer-part after the terminating zero chunk before reusing the keep-alive connection buffer. A remote unauthenticated client can place attacker-controlled bytes in that trailer region, causing Sanic to parse and route them as a hidden second request after the outer request. This breaks HTTP request-boundary integrity and can provide a request-smuggling primitive when Sanic is deployed behind intermediaries. This issue is fixed in version 25.12.1."}], "id": "CVE-2026-85078", "lastModified": "2026-09-17T15:16:55.153", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-17T15:16:55.153", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/sanic-org/sanic/commit/47349d689d65fa1907977ac100e867894aeafb22"}, {"source": "security-advisories@github.com", "url": "https://github.com/sanic-org/sanic/commit/69a10d3b06babaa9e5f6d1af577364e9e53b6dea"}, {"source": "security-advisories@github.com", "url": "https://github.com/sanic-org/sanic/commit/a332796506c7c588b6930b02a8886e43eb8ea8d6"}, {"source": "security-advisories@github.com", "url": "https://github.com/sanic-org/sanic/pull/3164"}, {"source": "security-advisories@github.com", "url": "https://github.com/sanic-org/sanic/pull/3165"}, {"source": "security-advisories@github.com", "url": "https://github.com/sanic-org/sanic/releases/tag/v24.12.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/sanic-org/sanic/releases/tag/v25.12.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/sanic-org/sanic/security/advisories/GHSA-wmj6-g64g-j7q5"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}