{"id":"CVE-2026-55614","aliases":[],"cve":{"records":[{"id":"CVE-2026-55614","source":"GitHub_M","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-06-16T23:31:22.445Z","published":"2026-10-30T22:01:54.750Z","modified":"2026-10-30T22:01:54.750Z"}],"publishers":[{"name":"GitHub_M","role":"CNA","organizationId":"a0819718-46f1-4df5-94e2-005712e83aaa","modified":"2026-10-30T22:01:54.750Z"}],"references":[{"url":"https://github.com/openwrt/uhttpd/security/advisories/GHSA-mcfg-c4r7-pjpf","tags":["x_refsource_CONFIRM"],"source":"GitHub_M"},{"url":"https://github.com/openwrt/uhttpd/commit/6641b050e5f7c7fd9ae92e8e119d6d6dfc6e9837","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/openwrt/uhttpd/commit/ae015e099986ceace44975cb69629841a2d58d37","tags":["x_refsource_MISC"],"source":"GitHub_M"}],"weaknesses":[{"id":"CWE-444","description":"CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')","source":"GitHub_M"}],"applicability":[],"prioritization":[]},"title":"uhttpd vulnerable to HTTP request smuggling via case-sensitive Transfer-Encoding matching","titleSource":"GitHub_M","descriptionSource":"GitHub_M","description":"uhttpd is a small HTTP server. In unpatched repository snapshots, `client_parse_header()` in `client.c` lowercases header names but compares the `Transfer-Encoding` value to `chunked` using case-sensitive `strcmp`. A mixed-case transfer-coding token is accepted without enabling `r->transfer_chunked`, despite transfer-coding tokens being case-insensitive. On a keep-alive connection, the `chunked` POST body is left unread and request-shaped body bytes are parsed as another HTTP request, permitting HTTP request smuggling and boundary desynchronization. Commits ae015e099986ceace44975cb69629841a2d58d37 and 6641b050e5f7c7fd9ae92e8e119d6d6dfc6e9837 patch the issue.","score":6.9,"severity":"medium","published":"2026-10-30T22:01:54.750Z","modified":"2026-10-30T22:01:54.750Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"openwrt","name":"uhttpd","platforms":[],"versions":[{"version":">= 2bef561c890f275ce3b785e6abdb3eda28c96aa8, < ae015e099986ceace44975cb69629841a2d58d37","status":"affected"},{"version":">= 2bef561c890f275ce3b785e6abdb3eda28c96aa8, < 6641b050e5f7c7fd9ae92e8e119d6d6dfc6e9837","status":"affected"}],"cpes":[],"source":"GitHub_M","url":"https://www.cve.org/CVERecord?id=CVE-2026-55614"}],"remediation":[],"references":["https://github.com/openwrt/uhttpd/security/advisories/GHSA-mcfg-c4r7-pjpf","https://github.com/openwrt/uhttpd/commit/6641b050e5f7c7fd9ae92e8e119d6d6dfc6e9837","https://github.com/openwrt/uhttpd/commit/ae015e099986ceace44975cb69629841a2d58d37"],"sources":[{"name":"CVE","id":"CVE-2026-55614","modified":"2026-10-30T22:01:54.750Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-55614"}],"assessments":[{"source":"GitHub_M","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.9}],"sourceAffected":[],"observedAt":"2026-10-30T22:48:32.830Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T07:10:30.687Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-30T23:25:33.614Z","attemptedAt":"2026-10-30T23:25:33.614Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-30T23:25:33.654Z","attemptedAt":"2026-10-30T23:25:33.654Z"},{"source":"EUVD","status":"no-result","checkedAt":"2026-10-30T23:25:33.661Z","attemptedAt":"2026-10-30T23:25:33.661Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-30T23:25:32.458Z","attemptedAt":"2026-10-30T23:25:32.458Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-55614","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55614","modified":"2026-10-30T22:16:55.250","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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","checkedAt":"2026-10-30T23:25:33.614Z"}],"aiSummary":null}