CVE-2026-34993
CVE-2026-34993 · AIOHTTP Vulnerable to Deserialization of Untrusted Data
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, using ``CookieJar.load()`` with untrusted input may allow arbitrary code execution. Most applications using this function will be doing so with the user's own data, so this is unlikely to affect many applications. Version 3.14.0 patches the issue. If an application does allow attacker controlled files to be loaded, a workaround on older releases would be to sanitize the files before loading.
CVSS 6.4 · Medium · EPSS 0.5% · Fix available
- Published
- Updated
Affected products and versions
aiohttp
- Versions
- < 3.14.0: Affected
No fix published
python-aiohttp Debian:12
- Versions
- 3.10.0-1
- 3.10.1-1
- 3.10.10-1
- 3.10.10-2
- 3.10.11-1
- 3.10.3-1
- 3.10.3-2
- 3.10.3-3
- 3.10.4-1
- 3.10.5-1
- 3.10.6-1
- 3.10.8-1
- 3.11.15-1
- 3.11.16-1
- 3.12.15-1
- 3.13.0-1
- 3.13.1-1
- 3.13.3-1
- 3.13.3-2
- 3.13.3-3
- 3.13.5-1
- 3.14.0-1
- 3.14.1-1
- 3.14.1-2
- 3.14.1-3
- 3.14.1-4
- 3.14.1-5
- 3.14.3-1
- 3.8.4-1
- 3.8.4-1+deb12u1
- 3.8.5-1
- 3.8.6-1
- 3.9.1-1
- 3.9.5-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
python-aiohttp Debian:13
- Versions
- 3.11.16-1
- 3.11.16-1+deb13u1
- 3.12.15-1
- 3.13.0-1
- 3.13.1-1
- 3.13.3-1
- 3.13.3-2
- 3.13.3-3
- 3.13.5-1
- 3.14.0-1
- 3.14.1-1
- 3.14.1-2
- 3.14.1-3
- 3.14.1-4
- 3.14.1-5
- 3.14.3-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
python-aiohttp Debian:14
- Versions
- 3.11.16-1
- 3.12.15-1
- 3.13.0-1
- 3.13.1-1
- 3.13.3-1
- 3.13.3-2
- 3.13.3-3
- 3.13.5-1
- Affected ranges
- ECOSYSTEM: < 3.14.0-1
Update to 3.14.0-1
aiohttp PyPI
- Versions
- 0.1
- 0.10.0
- 0.10.1
- 0.10.2
- 0.11.0
- 0.12.0
- 0.13.0
- 0.13.1
- 0.14.0
- 0.14.1
- 0.14.2
- 0.14.3
- 0.14.4
- 0.15.0
- 0.15.1
- 0.15.2
- 0.15.3
- 0.16.0
- 0.16.1
- 0.16.2
- 0.16.3
- 0.16.4
- 0.16.5
- 0.16.6
- 0.17.0
- 0.17.1
- 0.17.2
- 0.17.3
- 0.17.4
- 0.18.0
- 0.18.1
- 0.18.2
- 0.18.3
- 0.18.4
- 0.19.0
- 0.2
- 0.20.0
- 0.20.1
- 0.20.2
- 0.21.0
- 0.21.1
- 0.21.2
- 0.21.4
- 0.21.5
- 0.21.6
- 0.22.0
- 0.22.0a0
- 0.22.0b0
- 0.22.0b1
- 0.22.0b2
- 0.22.0b3
- 0.22.0b4
- 0.22.0b5
- 0.22.0b6
- 0.22.1
- 0.22.2
- 0.22.3
- 0.22.4
- 0.22.5
- 0.3
- 0.4
- 0.4.1
- 0.4.2
- 0.4.3
- 0.4.4
- 0.5.0
- 0.6.0
- 0.6.1
- 0.6.2
- 0.6.3
- 0.6.4
- 0.6.5
- 0.7.0
- 0.7.1
- 0.7.2
- 0.7.3
- 0.8.0
- 0.8.1
- 0.8.2
- 0.8.3
- 0.8.4
- 0.9.0
- 0.9.1
- 0.9.2
- 0.9.3
- 1.0.0
- 1.0.1
- 1.0.2
- 1.0.3
- 1.0.5
- 1.1.0
- 1.1.1
- 1.1.2
- 1.1.3
- 1.1.4
- 1.1.5
- 1.1.6
- 1.2.0
- 1.3.0
- 1.3.1
- 1.3.2
- 1.3.3
- 1.3.4
- 1.3.5
- 2.0.0
- 2.0.0rc1
- 2.0.1
- 2.0.2
- 2.0.3
- 2.0.4
- 2.0.5
- 2.0.6
- 2.0.7
- 2.1.0
- 2.2.0
- 2.2.1
- 2.2.2
- 2.2.3
- 2.2.4
- 2.2.5
- 2.3.0
- 2.3.0a1
- 2.3.0a2
- 2.3.0a3
- 2.3.0a4
- 2.3.1
- 2.3.10
- 2.3.1a1
- 2.3.2
- 2.3.2b2
- 2.3.2b3
- 2.3.3
- 2.3.4
- 2.3.5
- 2.3.6
- 2.3.7
- 2.3.8
- 2.3.9
- 3.0.0
- 3.0.0b0
- 3.0.0b1
- 3.0.0b2
- 3.0.0b3
- 3.0.0b4
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.1.0
- 3.1.1
- 3.1.2
- 3.1.3
- 3.10.0
- 3.10.0b1
- 3.10.0rc0
- 3.10.1
- 3.10.10
- 3.10.11
- 3.10.11rc0
- 3.10.2
- 3.10.3
- 3.10.4
- 3.10.5
- 3.10.6
- 3.10.6rc0
- 3.10.6rc1
- 3.10.6rc2
- 3.10.7
- 3.10.8
- 3.10.9
- 3.11.0
- 3.11.0b0
- 3.11.0b1
- 3.11.0b2
- 3.11.0b3
- 3.11.0b4
- 3.11.0b5
- 3.11.0rc0
- 3.11.0rc1
- 3.11.0rc2
- 3.11.1
- 3.11.10
- 3.11.11
- 3.11.12
- 3.11.13
- 3.11.14
- 3.11.15
- 3.11.16
- 3.11.17
- 3.11.18
- 3.11.2
- 3.11.3
- 3.11.4
- 3.11.5
- 3.11.6
- 3.11.7
- 3.11.8
- 3.11.9
- 3.12.0
- 3.12.0b0
- 3.12.0b1
- 3.12.0b2
- 3.12.0b3
- 3.12.0rc0
- 3.12.0rc1
- 3.12.1
- 3.12.10
- 3.12.11
- 3.12.12
- 3.12.13
- 3.12.14
- 3.12.15
- 3.12.1rc0
- 3.12.2
- 3.12.3
- 3.12.4
- 3.12.6
- 3.12.7
- 3.12.7rc0
- 3.12.8
- 3.12.9
- 3.13.0
- 3.13.1
- 3.13.2
- 3.13.3
- 3.13.4
- 3.13.5
- 3.2.0
- 3.2.1
- 3.3.0
- 3.3.0a0
- 3.3.1
- 3.3.2
- 3.3.2a0
- 3.4.0
- 3.4.0a0
- 3.4.0a3
- 3.4.0b1
- 3.4.0b2
- 3.4.1
- 3.4.2
- 3.4.3
- 3.4.4
- 3.5.0
- 3.5.0a1
- 3.5.0b1
- 3.5.0b2
- 3.5.0b3
- 3.5.1
- 3.5.2
- 3.5.3
- 3.5.4
- 3.6.0
- 3.6.0a0
- 3.6.0a1
- 3.6.0a11
- 3.6.0a12
- 3.6.0a2
- 3.6.0a3
- 3.6.0a4
- 3.6.0a5
- 3.6.0a6
- 3.6.0a7
- 3.6.0a8
- 3.6.0a9
- 3.6.0b0
- 3.6.1
- 3.6.1b3
- 3.6.1b4
- 3.6.2
- 3.6.2a0
- 3.6.2a1
- 3.6.2a2
- 3.6.3
- 3.7.0
- 3.7.0b0
- 3.7.0b1
- 3.7.1
- 3.7.2
- 3.7.3
- 3.7.4
- 3.7.4.post0
- 3.8.0
- 3.8.0a7
- 3.8.0b0
- 3.8.1
- 3.8.2
- 3.8.3
- 3.8.4
- 3.8.5
- 3.8.6
- 3.9.0
- 3.9.0b0
- 3.9.0b1
- 3.9.0rc0
- 3.9.1
- 3.9.2
- 3.9.3
- 3.9.4
- 3.9.4rc0
- 3.9.5
- Affected ranges
- ECOSYSTEM: < 3.14.0
Update to 3.14.0
python-aiohttp Ubuntu:Pro:16.04:LTS
- Versions
- 0.17.2-1
- 0.17.4-1
- 0.17.4-1build1
- 0.20.2-1
- 0.20.2-1ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
python-aiohttp Ubuntu:Pro:18.04:LTS
- Versions
- 2.2.3-1build1
- 2.2.3-2
- 2.3.6-1
- 3.0.1-1
- 3.0.1-1ubuntu0.1~esm1
- 3.0.1-1ubuntu0.1~esm4
- 3.0.1-1ubuntu0.1~esm5
- 3.0.1-1ubuntu0.1~esm6
- 3.0.1-1ubuntu0.1~esm7
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
python-aiohttp Ubuntu:Pro:20.04:LTS
- Versions
- 3.5.4-1
- 3.5.4-1build1
- 3.6.1-1
- 3.6.2-1
- 3.6.2-1build1
- 3.6.2-1ubuntu0.1~esm1
- 3.6.2-1ubuntu1
- 3.6.2-1ubuntu1+esm1
- 3.6.2-1ubuntu1+esm3
- 3.6.2-1ubuntu1+esm4
- 3.6.2-1ubuntu1+esm5
- 3.6.2-1ubuntu1+esm6
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
python-aiohttp Ubuntu:Pro:22.04:LTS
- Versions
- 3.7.4-1
- 3.7.4-1build2
- 3.8.1-3
- 3.8.1-4
- 3.8.1-4build1
- 3.8.1-4ubuntu0.2
- 3.8.1-4ubuntu0.2+esm1
- 3.8.1-4ubuntu0.2+esm2
- 3.8.1-4ubuntu0.2+esm3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
python-aiohttp Ubuntu:Pro:24.04:LTS
- Versions
- 3.8.4-1
- 3.9.1-1
- 3.9.1-1build1
- 3.9.1-1ubuntu0.1
- 3.9.1-1ubuntu0.1+esm1
- 3.9.1-1ubuntu0.1+esm2
- 3.9.1-1ubuntu0.1+esm3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
python-aiohttp Ubuntu:25.10
- Versions
- 3.10.11-1build1
- 3.11.16-1
- 3.11.16-1ubuntu0.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
python-aiohttp Ubuntu:26.10
- Versions
- 3.13.3-3ubuntu1
- 3.14.1-4
- 3.14.1-5
- 3.14.3-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
python-aiohttp Ubuntu:Pro:26.04:LTS
- Versions
- 3.11.16-1
- 3.13.1-1
- 3.13.3-3
- 3.13.3-3ubuntu1
- 3.13.3-3ubuntu1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jg22-mg44-37j8
- https://github.com/aio-libs/aiohttp/commit/dcf40f30637e8752c76781cf6703b5a236749a00
- https://access.redhat.com/security/cve/CVE-2026-34993
- https://bugzilla.redhat.com/show_bug.cgi?id=2484099
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34993.json
- https://access.redhat.com/errata/RHSA-2026:59135
- https://access.redhat.com/errata/RHSA-2026:50319
- https://access.redhat.com/errata/RHSA-2026:63327
- https://access.redhat.com/errata/RHSA-2026:59136
- https://access.redhat.com/errata/RHSA-2026:50336
- https://access.redhat.com/errata/RHSA-2026:63387
- https://access.redhat.com/errata/RHSA-2026:63386
- https://access.redhat.com/errata/RHSA-2026:63385
- https://access.redhat.com/errata/RHSA-2026:59518
- https://access.redhat.com/errata/RHSA-2026:50357
- https://access.redhat.com/errata/RHSA-2026:50479
- https://access.redhat.com/errata/RHSA-2026:50340
- https://access.redhat.com/errata/RHSA-2026:54760
- https://access.redhat.com/errata/RHSA-2026:62336
- https://access.redhat.com/errata/RHSA-2026:62335
- https://access.redhat.com/errata/RHSA-2026:43038
- https://access.redhat.com/errata/RHSA-2026:42644
- https://access.redhat.com/errata/RHSA-2026:24977
- https://nvd.nist.gov/vuln/detail/CVE-2026-34993