{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-32873","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-03-16T21:03:44.419Z","datePublished":"2026-03-20T01:13:39.665Z","dateUpdated":"2026-03-20T18:08:59.660Z"},"containers":{"cna":{"title":"ewe: Loop with Unreachable Exit Condition ('Infinite Loop')","problemTypes":[{"descriptions":[{"cweId":"CWE-825","lang":"en","description":"CWE-825: Expired Pointer Dereference","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/vshakitskiy/ewe/security/advisories/GHSA-4w98-xf39-23gp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/vshakitskiy/ewe/security/advisories/GHSA-4w98-xf39-23gp"},{"name":"https://github.com/vshakitskiy/ewe/commit/8513de9dcdd0005f727c0f6f15dd89f8d626f560","tags":["x_refsource_MISC"],"url":"https://github.com/vshakitskiy/ewe/commit/8513de9dcdd0005f727c0f6f15dd89f8d626f560"},{"name":"https://github.com/vshakitskiy/ewe/commit/d8b9b8a86470c0cb5696647997c2f34763506e37","tags":["x_refsource_MISC"],"url":"https://github.com/vshakitskiy/ewe/commit/d8b9b8a86470c0cb5696647997c2f34763506e37"}],"affected":[{"vendor":"vshakitskiy","product":"ewe","versions":[{"version":">= 0.8.0, < 3.0.5","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-03-20T01:13:39.665Z"},"descriptions":[{"lang":"en","value":"ewe is a Gleam web server. Versions 0.8.0 through 3.0.4 contain a bug in the handle_trailers function where rejected trailer headers (forbidden or undeclared) cause an infinite loop. When handle_trailers encounters such a trailer, three code paths (lines 520, 523, 526) recurse with the original buffer (rest) instead of advancing past the rejected header (Buffer(header_rest, 0)), causing decoder.decode_packet to re-parse the same header on every iteration. The resulting loop has no timeout or escape — the BEAM process permanently wedges at 100% CPU. Any application that calls ewe.read_body on chunked requests is affected, and this is exploitable by any unauthenticated remote client before control returns to application code, making an application-level workaround impossible. This issue is fixed in version 3.0.5."}],"source":{"advisory":"GHSA-4w98-xf39-23gp","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/vshakitskiy/ewe/security/advisories/GHSA-4w98-xf39-23gp","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-20T16:56:22.137229Z","id":"CVE-2026-32873","options":[{"Exploitation":"poc"},{"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":"2026-03-20T18:08:59.660Z"}}]}}