{"id":"CVE-2025-69225","aliases":["GHSA-mqqc-3gqh-h2x8","PYSEC-2026-1109"],"url":"https://o3.security/vulnerability/CVE-2025-69225","summary":"AIOHTTP Regex Mismatch Allows Unicode in ASCII-Only Protocol Fields","details":"AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there's a method to exploit a request smuggling vulnerability. This issue is fixed in version 3.13.3.","published":"2026-01-05T23:16:19.158Z","modified":"2026-08-12T03:51:48.486101080Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"aiohttp","fixedVersion":"3.13.3"}],"fix":{"url":"https://github.com/aio-libs/aiohttp/commit/c7b7a044f88c71cefda95ec75cdcfaa4792b3b96","label":"aio-libs/aiohttp@c7b7a04"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/69xxx/CVE-2025-69225.json"},{"type":"ADVISORY","url":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-mqqc-3gqh-h2x8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-69225"},{"type":"FIX","url":"https://github.com/aio-libs/aiohttp/commit/c7b7a044f88c71cefda95ec75cdcfaa4792b3b96"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:48.486101080Z"}}