AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb
### 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. ------ Patch: https://github.com/aio-libs/aiohttp/commit/2b920c39002cee0ec5b402581779bbaaf7c9138a
02 / AFFECTED SOFTWARE
Affected packages
303 explicit affected versions
303 explicit affected versions
150 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
### 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. ------ Patch: https://github.com/aio-libs/aiohttp/commit/2b920c39002cee0ec5b402581779bbaaf7c9138a
### 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. ------ Patch: https://github.com/aio-libs/aiohttp/commit/2b920c39002cee0ec5b402581779bbaaf7c9138a
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a zip bomb to be used to execute a DoS against the AIOHTTP server. An attacker may be able to send a compressed request that when decompressed by AIOHTTP could exhaust the host's memory. This issue is fixed in version 3.13.3.
05 / REFERENCES
Further evidence
- https://github.com/aio-libs/aiohttp
- https://github.com/aio-libs/aiohttp/commit/2b920c39002cee0ec5b402581779bbaaf7c9138a
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-6mq8-rvhq-8wgg
- https://nvd.nist.gov/vuln/detail/CVE-2025-69223
- https://github.com/advisories/GHSA-6mq8-rvhq-8wgg
- https://pypi.org/project/aiohttp
- https://access.redhat.com/errata/RHSA-2026:10184
- https://access.redhat.com/errata/RHSA-2026:1249
- https://access.redhat.com/errata/RHSA-2026:1497
- https://access.redhat.com/errata/RHSA-2026:1506
- https://access.redhat.com/errata/RHSA-2026:1596
- https://access.redhat.com/errata/RHSA-2026:1599
- https://access.redhat.com/errata/RHSA-2026:1609
- https://access.redhat.com/errata/RHSA-2026:19712
- https://access.redhat.com/errata/RHSA-2026:2106
- https://access.redhat.com/errata/RHSA-2026:2695
- https://access.redhat.com/errata/RHSA-2026:3461
- https://access.redhat.com/errata/RHSA-2026:3462
- https://access.redhat.com/errata/RHSA-2026:3713
- https://access.redhat.com/errata/RHSA-2026:37275
- https://access.redhat.com/errata/RHSA-2026:3782
- https://access.redhat.com/errata/RHSA-2026:3958
- https://access.redhat.com/errata/RHSA-2026:3959
- https://access.redhat.com/errata/RHSA-2026:3960
- https://access.redhat.com/errata/RHSA-2026:41928
- https://access.redhat.com/errata/RHSA-2026:6308
- https://access.redhat.com/errata/RHSA-2026:6309
- https://access.redhat.com/security/cve/CVE-2025-69223
- https://bugzilla.redhat.com/show_bug.cgi?id=2427456
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/69xxx/CVE-2025-69223.json
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-69223.json