{"id":"CVE-2025-69225","aliases":["GHSA-mqqc-3gqh-h2x8","PYSEC-2026-1109"],"title":"AIOHTTP has unicode match groups in regexes for ASCII protocol elements","summary":"AIOHTTP has unicode match groups in regexes for ASCII protocol elements","severity":"low","vendor":"aiohttp","product":"aiohttp","ecosystem":"pip","affected":["aiohttp < 3.13.3"],"patched":["aiohttp 3.13.3"],"published":"2026-01-05","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:50:33.538693726Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-mqqc-3gqh-h2x8","references":[{"url":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-mqqc-3gqh-h2x8"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-69225"},{"url":"https://github.com/aio-libs/aiohttp/commit/c7b7a044f88c71cefda95ec75cdcfaa4792b3b96"},{"url":"https://github.com/aio-libs/aiohttp"}],"tags":["osv","pip"],"epss":0.00276,"epssPercentile":0.20251,"ingestedAt":"2026-07-08T18:25:51.425Z","slug":"CVE-2025-69225","body":"## Overview\n\n### Summary\n\nThe parser allows non-ASCII decimals to be present in the Range header.\n\n### Impact\n\nThere is no known impact, but there is the possibility that there's a method to exploit a request smuggling vulnerability.\n\n----\n\nPatch: https://github.com/aio-libs/aiohttp/commit/c7b7a044f88c71cefda95ec75cdcfaa4792b3b96\n\n## Affected packages\n\n- `aiohttp < 3.13.3`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `aiohttp 3.13.3`","depth":"sunlit","depthScore":14,"depthScoreParts":{"impact":13.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}