CVE-2025-69223

HIGH 7.5

AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-409 CWE-770
Vendor	aio-libs
Product	aiohttp
Published	Jan 5, 2026
Last Updated	Jun 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

aio-libs / aiohttp

< 3.13.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-6mq8-rvhq-8wgg github.com: https://github.com/aio-libs/aiohttp/commit/2b920c39002cee0ec5b402581779bbaaf7c9138a access.redhat.com: https://access.redhat.com/security/cve/CVE-2025-69223 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2427456 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-69223.json access.redhat.com: https://access.redhat.com/errata/RHSA-2026:1497 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:1506 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3959 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:1249 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3958 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3461 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3462 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:1599 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:1609 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6308 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:1596 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3960 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6309 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3782 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:10184 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:2106 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:2695 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3713 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:19712