CVE catalog
CVE-2025-69229
AIOHTTP vulnerabilities
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.40% · Oct 25, 2026
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. In versions 3.13.2 and below, handling of chunked messages can result in excessive blocking CPU usage when receiving a large number of chunks. If an application makes use of the request.read() method in an endpoint, it may be possible for an attacker to cause the server to spend a moderate amount of blocking CPU time (e.g. 1 second) while processing the request. This could potentially lead to DoS as the server would be unable to handle other requests during that time. This issue is fixed in version 3.13.3.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | python-aiohttp | sid | 3.14.3-1 | fixed |
| Debian | python-aiohttp | forky | 3.14.3-1 | fixed |
| Debian | python-aiohttp | trixie | 3.11.16-1+deb13u1 | fixed |
| Debian | python-aiohttp | trixie-security | 3.11.16-1+deb13u1 | fixed |
| Debian | python-aiohttp | bookworm | 3.8.4-1+deb12u1 | vulnerable |
| Debian | python-aiohttp | bookworm-security | 3.8.4-1+deb12u1 | vulnerable |
| Ubuntu | python-aiohttp | noble | Not reported | vulnerable |
| Ubuntu | python-aiohttp | noble | 3.9.1-1ubuntu0.1+esm2 | fixed |
| Ubuntu | python-aiohttp-doc | noble | 3.9.1-1ubuntu0.1+esm2 | fixed |
| Ubuntu | python3-aiohttp | noble | 3.9.1-1ubuntu0.1+esm2 | fixed |
| PyPI | aiohttp | Not reported | 3.13.3 | fixed |
| Cpe | aiohttp | Not reported | 3.13.3 | fixed |
| Ubuntu | python-aiohttp | pro | 3.8.4-1 | vulnerable |
| Ubuntu | python-aiohttp | pro | 3.9.1-1 | vulnerable |
| Ubuntu | python-aiohttp | pro | 3.9.1-1build1 | vulnerable |
| Ubuntu | python-aiohttp | pro | 3.9.1-1ubuntu0.1 | vulnerable |
| Ubuntu | python-aiohttp | pro | 3.9.1-1ubuntu0.1+esm1 | vulnerable |
| Ubuntu | python-aiohttp | pro | 3.9.1-1ubuntu0.1+esm2 | fixed |
| Ubuntu | python-aiohttp | 25.10 | 3.10.11-1build1 | vulnerable |
| Ubuntu | python-aiohttp | 25.10 | 3.11.16-1 | vulnerable |
| Ubuntu | python-aiohttp | 25.10 | 3.11.16-1ubuntu0.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | python-aiohttp | source | sid | 3.13.3-1 | not yet assigned | Not reported | Not reported |
| Debian | python-aiohttp | source | forky | 3.13.3-1 | not yet assigned | Not reported | Not reported |
| Debian | python-aiohttp | source | trixie | 3.11.16-1+deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | python-aiohttp | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Ubuntu | python-aiohttp | deb | noble | 3.9.1-1ubuntu0.1+esm2 | Not reported | Not reported | Not reported |
| Ubuntu | python-aiohttp-doc | deb | noble | 3.9.1-1ubuntu0.1+esm2 | Not reported | Not reported | Not reported |
| Ubuntu | python3-aiohttp | deb | noble | 3.9.1-1ubuntu0.1+esm2 | Not reported | Not reported | Not reported |
| PyPI | aiohttp | PyPI | Not reported | 3.13.3 | Not reported | GHSA-G84X-MCQJ-X9QQ | Not reported |
| Cpe | aiohttp | cpe | Not reported | 3.13.3 | Not reported | NVD-CVE-2025-69229 | Not reported |
| Ubuntu | python-aiohttp | deb | pro | 3.9.1-1ubuntu0.1+esm2 | Not reported | UBUNTU-CVE-2025-69229 | Not reported |
| Ubuntu | python-aiohttp | deb | 25.10 | 3.11.16-1ubuntu0.1 | Not reported | UBUNTU-CVE-2025-69229 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-aiohttp]Affected
Source package: [python-aiohttp]
Details (4)
3.8.4-1+deb12u1· amd64 · bookwormAffected
usn · python-aiohttp · debian · bookworm; usn · python-aiohttp · debian · 12
3.8.4-1+deb12u1· arm64 · bookwormAffected
usn · python-aiohttp · debian · bookworm; usn · python-aiohttp · debian · 12
3.8.4-1+deb12u1· amd64 · bookworm-securityAffected
usn · python-aiohttp · debian · bookworm; usn · python-aiohttp · debian · 12
3.8.4-1+deb12u1· arm64 · bookworm-securityAffected
usn · python-aiohttp · debian · bookworm; usn · python-aiohttp · debian · 12
- [python-aiohttp-doc]Affected
Source package: [python-aiohttp]
Details (4)
3.8.4-1+deb12u1· all · bookwormAffected
usn · python-aiohttp · debian · bookworm; usn · python-aiohttp · debian · 12
3.8.4-1+deb12u1· all · bookwormAffected
usn · python-aiohttp · debian · bookworm; usn · python-aiohttp · debian · 12
3.8.4-1+deb12u1· all · bookworm-securityAffected
usn · python-aiohttp · debian · bookworm; usn · python-aiohttp · debian · 12
3.8.4-1+deb12u1· all · bookworm-securityAffected
usn · python-aiohttp · debian · bookworm; usn · python-aiohttp · debian · 12
[Debian 13 (Trixie)]
- [python3-aiohttp]Fixed
Source package: [python-aiohttp]
Details (4)
3.11.16-1+deb13u1· amd64 · trixieFixed · Fixed:
3.11.16-1+deb13u1usn · python-aiohttp · debian · 13
3.11.16-1+deb13u1· arm64 · trixieFixed · Fixed:
3.11.16-1+deb13u1usn · python-aiohttp · debian · 13
3.11.16-1+deb13u1· amd64 · trixie-securityFixed · Fixed:
3.11.16-1+deb13u1usn · python-aiohttp · debian · 13
3.11.16-1+deb13u1· arm64 · trixie-securityFixed · Fixed:
3.11.16-1+deb13u1usn · python-aiohttp · debian · 13
- [python-aiohttp-doc]Fixed
Source package: [python-aiohttp]
Details (4)
3.11.16-1+deb13u1· all · trixieFixed · Fixed:
3.11.16-1+deb13u1usn · python-aiohttp · debian · 13
3.11.16-1+deb13u1· all · trixieFixed · Fixed:
3.11.16-1+deb13u1usn · python-aiohttp · debian · 13
3.11.16-1+deb13u1· all · trixie-securityFixed · Fixed:
3.11.16-1+deb13u1usn · python-aiohttp · debian · 13
3.11.16-1+deb13u1· all · trixie-securityFixed · Fixed:
3.11.16-1+deb13u1usn · python-aiohttp · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2025-69229]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-69229]
- [https://osv.dev/vulnerability/GHSA-g84x-mcqj-x9qq]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-69229]
- [https://security-tracker.debian.org/tracker/CVE-2025-69229]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-69229.json]
- [https://ubuntu.com/security/notices/USN-8032-1]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]