CVE catalog
CVE-2026-111063
python-aiohttp: CVE-2026-111063
- Severity
- Medium · CVSS 6.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.23% · Oct 25, 2026
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the Secure attribute for a shared cookie is not enforced. An attacker can consequently cause a shared cookie marked Secure to be sent with an unencrypted request. This issue is fixed in version 3.14.4.
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 | vulnerable |
| Debian | python-aiohttp | forky | 3.14.3-1 | vulnerable |
| 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 |
| Pip | aiohttp | Not reported | 3.14.4 | fixed |
| Ubuntu | python-aiohttp | pro | 3.11.16-1 | vulnerable |
| Ubuntu | python-aiohttp | pro | 3.13.1-1 | vulnerable |
| Ubuntu | python-aiohttp | pro | 3.13.3-3 | vulnerable |
| Ubuntu | python-aiohttp | pro | 3.13.3-3ubuntu1 | vulnerable |
| Ubuntu | python-aiohttp | pro | 3.13.3-3ubuntu1+esm1 | vulnerable |
| Ubuntu | python-aiohttp | 26.10 | 3.13.3-3ubuntu1 | vulnerable |
| Ubuntu | python-aiohttp | 26.10 | 3.14.1-4 | vulnerable |
| Ubuntu | python-aiohttp | 26.10 | 3.14.1-5 | vulnerable |
| Ubuntu | python-aiohttp | 26.10 | 3.14.3-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | python-aiohttp | source | sid | (unfixed) | not yet assigned | Not reported | [1151687] |
| Debian | python-aiohttp | source | forky | (unfixed) | not yet assigned | Not reported | [1151687] |
| Debian | python-aiohttp | source | trixie | (unfixed) | not yet assigned | Not reported | [1151687] |
| Debian | python-aiohttp | source | bookworm | (unfixed) | not yet assigned | Not reported | [1151687] |
| Pip | aiohttp | pip | Not reported | 3.14.4 | Not reported | GHSA-494J-54XM-RWP3 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-aiohttp]Affected
Source package: [python-aiohttp]
Details (4)
3.8.4-1+deb12u1· amd64 · bookwormAffected
dsa · python-aiohttp · debian · bookworm; dsa · python-aiohttp · debian · 12
3.8.4-1+deb12u1· arm64 · bookwormAffected
dsa · python-aiohttp · debian · bookworm; dsa · python-aiohttp · debian · 12
3.8.4-1+deb12u1· amd64 · bookworm-securityAffected
dsa · python-aiohttp · debian · bookworm; dsa · python-aiohttp · debian · 12
3.8.4-1+deb12u1· arm64 · bookworm-securityAffected
dsa · python-aiohttp · debian · bookworm; dsa · python-aiohttp · debian · 12
- [python-aiohttp-doc]Affected
Source package: [python-aiohttp]
Details (4)
3.8.4-1+deb12u1· all · bookwormAffected
dsa · python-aiohttp · debian · bookworm; dsa · python-aiohttp · debian · 12
3.8.4-1+deb12u1· all · bookwormAffected
dsa · python-aiohttp · debian · bookworm; dsa · python-aiohttp · debian · 12
3.8.4-1+deb12u1· all · bookworm-securityAffected
dsa · python-aiohttp · debian · bookworm; dsa · python-aiohttp · debian · 12
3.8.4-1+deb12u1· all · bookworm-securityAffected
dsa · python-aiohttp · debian · bookworm; dsa · python-aiohttp · debian · 12
[Debian 13 (Trixie)]
- [python3-aiohttp]Affected
Source package: [python-aiohttp]
Details (4)
3.11.16-1+deb13u1· amd64 · trixieAffected
dsa · python-aiohttp · debian · 13
3.11.16-1+deb13u1· arm64 · trixieAffected
dsa · python-aiohttp · debian · 13
3.11.16-1+deb13u1· amd64 · trixie-securityAffected
dsa · python-aiohttp · debian · 13
3.11.16-1+deb13u1· arm64 · trixie-securityAffected
dsa · python-aiohttp · debian · 13
- [python-aiohttp-doc]Affected
Source package: [python-aiohttp]
Details (4)
3.11.16-1+deb13u1· all · trixieAffected
dsa · python-aiohttp · debian · 13
3.11.16-1+deb13u1· all · trixieAffected
dsa · python-aiohttp · debian · 13
3.11.16-1+deb13u1· all · trixie-securityAffected
dsa · python-aiohttp · debian · 13
3.11.16-1+deb13u1· all · trixie-securityAffected
dsa · python-aiohttp · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/]
- [https://github.com/advisories/GHSA-494j-54xm-rwp3]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-111063]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-111063]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-111063]
- [https://security-tracker.debian.org/tracker/CVE-2026-111063]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-111063.json]
[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]