CVE-2025-69227: AIOHTTP vulnerable to DoS when bypassing asserts

January 5, 2026 (updated January 6, 2026)

When assert statements are bypassed, an infinite loop can occur, resulting in a DoS attack when processing a POST body.

References

github.com/advisories/GHSA-jj3x-wxrx-4x23
github.com/aio-libs/aiohttp
github.com/aio-libs/aiohttp/commit/bc1319ec3cbff9438a758951a30907b072561259
github.com/aio-libs/aiohttp/security/advisories/GHSA-jj3x-wxrx-4x23
nvd.nist.gov/vuln/detail/CVE-2025-69227

Code Behaviors & Features

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