HIGH7.5
PYSEC-2026-1101
AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb
Quick fix
PYSEC-2026-1101 — aiohttp: upgrade to the fixed version with the command below.
pip install --upgrade 'aiohttp>=3.13.3'Details
### Summary A zip bomb can be used to execute a DoS against the aiohttp server.
### Impact An attacker may be able to send a compressed request that when decompressed by aiohttp could exhaust the host's memory.
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Patch: https://github.com/aio-libs/aiohttp/commit/2b920c39002cee0ec5b402581779bbaaf7c9138a
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-6mq8-rvhq-8wgg[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2025-69223[ADVISORY]
- https://github.com/aio-libs/aiohttp/commit/2b920c39002cee0ec5b402581779bbaaf7c9138a[FIX]
- https://github.com/aio-libs/aiohttp[PACKAGE]
- https://pypi.org/project/aiohttp[PACKAGE]
- https://github.com/advisories/GHSA-6mq8-rvhq-8wgg[ADVISORY]