CVE catalog
CVE-2026-54280
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, payload resources are not closed correctly when a client disconnects in the middle of a write. If a pay
- Severity
- Low · CVSS 3.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.46% · Oct 27, 2026
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, payload resources are not closed correctly when a client disconnects in the middle of a write. If a payload is using an open file or similar limited resource, then an attacker may be able to cause resource starvation temporarily until garbage collection or similar closes the file. This vulnerability is fixed in 3.14.1.
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 | vulnerable |
| Debian | python-aiohttp | trixie-security | 3.11.16-1+deb13u1 | vulnerable |
| Debian | python-aiohttp | bookworm | 3.8.4-1+deb12u1 | vulnerable |
| Debian | python-aiohttp | bookworm-security | 3.8.4-1+deb12u1 | vulnerable |
| Cpe | python-aiohttp | Not reported | Not reported | vulnerable |
| Cpe | aiohttp | Not reported | 3.14.1 | fixed |
| PyPI | aiohttp | Not reported | 3.14.1 | fixed |
| Cpe | aiohttp | Not reported | 3.14.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | python-aiohttp | source | sid | 3.14.1-1 | not yet assigned | Not reported | Not reported |
| Debian | python-aiohttp | source | forky | 3.14.1-1 | not yet assigned | Not reported | Not reported |
| Debian | python-aiohttp | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | python-aiohttp | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Cpe | aiohttp | cpe | Not reported | 3.14.1 | Not reported | Not reported | Not reported |
| PyPI | aiohttp | PyPI | Not reported | 3.14.1 | Not reported | GHSA-9X8Q-7H8H-WCW9 | Not reported |
| Cpe | aiohttp | cpe | Not reported | 3.14.1 | Not reported | NVD-CVE-2026-54280 | Not reported |
Notes
[trixie] python-aiohttp: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-aiohttp]Affected
Source package: [python-aiohttp]
Details (4)
3.8.4-1+deb12u1· amd64 · bookwormAffected
nvd · python-aiohttp · debian · bookworm; nvd · python-aiohttp · debian · 12
3.8.4-1+deb12u1· arm64 · bookwormAffected
nvd · python-aiohttp · debian · bookworm; nvd · python-aiohttp · debian · 12
3.8.4-1+deb12u1· amd64 · bookworm-securityAffected
nvd · python-aiohttp · debian · bookworm; nvd · python-aiohttp · debian · 12
3.8.4-1+deb12u1· arm64 · bookworm-securityAffected
nvd · python-aiohttp · debian · bookworm; nvd · python-aiohttp · debian · 12
- [python-aiohttp-doc]Affected
Source package: [python-aiohttp]
Details (4)
3.8.4-1+deb12u1· all · bookwormAffected
nvd · python-aiohttp · debian · bookworm; nvd · python-aiohttp · debian · 12
3.8.4-1+deb12u1· all · bookwormAffected
nvd · python-aiohttp · debian · bookworm; nvd · python-aiohttp · debian · 12
3.8.4-1+deb12u1· all · bookworm-securityAffected
nvd · python-aiohttp · debian · bookworm; nvd · python-aiohttp · debian · 12
3.8.4-1+deb12u1· all · bookworm-securityAffected
nvd · python-aiohttp · debian · bookworm; nvd · python-aiohttp · debian · 12
[Debian 13 (Trixie)]
- [python3-aiohttp]Affected
Source package: [python-aiohttp]
Details (4)
3.11.16-1+deb13u1· amd64 · trixieAffected
nvd · python-aiohttp · debian · 13
3.11.16-1+deb13u1· arm64 · trixieAffected
nvd · python-aiohttp · debian · 13
3.11.16-1+deb13u1· amd64 · trixie-securityAffected
nvd · python-aiohttp · debian · 13
3.11.16-1+deb13u1· arm64 · trixie-securityAffected
nvd · python-aiohttp · debian · 13
- [python-aiohttp-doc]Affected
Source package: [python-aiohttp]
Details (4)
3.11.16-1+deb13u1· all · trixieAffected
nvd · python-aiohttp · debian · 13
3.11.16-1+deb13u1· all · trixieAffected
nvd · python-aiohttp · debian · 13
3.11.16-1+deb13u1· all · trixie-securityAffected
nvd · python-aiohttp · debian · 13
3.11.16-1+deb13u1· all · trixie-securityAffected
nvd · python-aiohttp · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_21372-1.json]
- [https://github.com/aio-libs/aiohttp/commit/a762eda5242f6490d6ba667533193f8b473ad587]
- [https://github.com/aio-libs/aiohttp/security/advisories/GHSA-9x8q-7h8h-wcw9]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-54280]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-54280]
- [https://osv.dev/vulnerability/GHSA-9x8q-7h8h-wcw9]
- [https://security-tracker.debian.org/tracker/CVE-2026-54280]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54280.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]