CVE catalog
CVE-2026-34515
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, on Windows the static resource handler may expose information about a NTLMv2 remote path. This
- Severity
- Medium · CVSS 6.6
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.43% · Oct 25, 2026
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, on Windows the static resource handler may expose information about a NTLMv2 remote path. This issue has been patched in version 3.13.4.
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 | not affected |
| Debian | python-aiohttp | forky | 3.14.3-1 | not affected |
| Debian | python-aiohttp | trixie | 3.11.16-1+deb13u1 | not affected |
| Debian | python-aiohttp | trixie-security | 3.11.16-1+deb13u1 | not affected |
| Debian | python-aiohttp | bookworm | 3.8.4-1+deb12u1 | not affected |
| Debian | python-aiohttp | bookworm-security | 3.8.4-1+deb12u1 | not affected |
| Cpe | aiohttp | Not reported | 3.13.4 | fixed |
| PyPI | aiohttp | Not reported | 3.13.4 | 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 | vulnerable |
| Cpe | aiohttp | Not reported | 3.13.4 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | python-aiohttp | source | sid | Not affected | unimportant | Not reported | Not reported |
| Debian | python-aiohttp | source | forky | Not affected | unimportant | Not reported | Not reported |
| Debian | python-aiohttp | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | python-aiohttp | source | bookworm | Not affected | unimportant | Not reported | Not reported |
| Cpe | aiohttp | cpe | Not reported | 3.13.4 | Not reported | Not reported | Not reported |
| PyPI | aiohttp | PyPI | Not reported | 3.13.4 | Not reported | GHSA-P998-JP59-783M | Not reported |
| Cpe | aiohttp | cpe | Not reported | 3.13.4 | Not reported | NVD-CVE-2026-34515 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-aiohttp]Not affected
Source package: [python-aiohttp]
Details (4)
3.8.4-1+deb12u1· amd64 · bookwormNot affected
nvd · python-aiohttp · debian · bookworm
3.8.4-1+deb12u1· arm64 · bookwormNot affected
nvd · python-aiohttp · debian · bookworm
3.8.4-1+deb12u1· amd64 · bookworm-securityNot affected
nvd · python-aiohttp · debian · bookworm
3.8.4-1+deb12u1· arm64 · bookworm-securityNot affected
nvd · python-aiohttp · debian · bookworm
- [python-aiohttp-doc]Not affected
Source package: [python-aiohttp]
Details (4)
3.8.4-1+deb12u1· all · bookwormNot affected
nvd · python-aiohttp · debian · bookworm
3.8.4-1+deb12u1· all · bookwormNot affected
nvd · python-aiohttp · debian · bookworm
3.8.4-1+deb12u1· all · bookworm-securityNot affected
nvd · python-aiohttp · debian · bookworm
3.8.4-1+deb12u1· all · bookworm-securityNot affected
nvd · python-aiohttp · debian · bookworm
Observed:
References
- [https://github.com/aio-libs/aiohttp/commit/0ae2aa076c84573df83fc1fdc39eec0f5862fe3d]
- [https://github.com/aio-libs/aiohttp/releases/tag/v3.13.4]
- [https://github.com/aio-libs/aiohttp/security/advisories/GHSA-p998-jp59-783m]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-34515]
- [https://osv.dev/vulnerability/GHSA-p998-jp59-783m]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-34515]
- [https://security-tracker.debian.org/tracker/CVE-2026-34515]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34515.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2933.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]