{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-55181","assignerOrgId":"4fc57720-52fe-4431-a0fb-3d2c8747b827","state":"PUBLISHED","assignerShortName":"Meta","dateReserved":"2025-08-08T18:21:47.119Z","datePublished":"2025-12-02T22:13:31.101Z","dateUpdated":"2025-12-03T00:33:57.022Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"proxygen","vendor":"Facebook","versions":[{"lessThanOrEqual":"v2025.12.01.00","status":"affected","version":"v2025.08.25.00","versionType":"semver"}]}],"dateAssigned":"2025-12-01T00:00:00.000Z","descriptions":[{"lang":"en","value":"Sending an HTTP request/response body with greater than 2^31 bytes triggers an infinite loop in proxygen::coro::HTTPQuicCoroSession which blocks the backing event loop and unconditionally appends data to a std::vector per-loop iteration. This issue leads to unbounded memory growth and eventually causes the process to run out of memory."}],"problemTypes":[{"descriptions":[{"description":"Excessive Iteration (CWE-834)","lang":"en"}]}],"providerMetadata":{"orgId":"4fc57720-52fe-4431-a0fb-3d2c8747b827","shortName":"Meta","dateUpdated":"2025-12-02T22:13:31.101Z"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://www.facebook.com/security/advisories/cve-2025-55181"},{"tags":["x_refsource_CONFIRM"],"url":"https://github.com/facebook/proxygen/commit/17689399ef99b7c3d3a8b2b768b1dba1a4b72f8f"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM"}}]},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-834","lang":"en","description":"CWE-834 Excessive Iteration"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-03T00:33:16.510713Z","id":"CVE-2025-55181","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":"2025-12-03T00:33:57.022Z"}}]}}