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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-34993

35
FAUCET Score

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.

First published: Jun 2, 2026Last modified: Jun 2, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 3.14.0CPE matchmatch criteria
cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.4MEDIUM

CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
0.6
Impact Score
5.3
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
3.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 17th percentile among its peer group of 759 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: aiohttpFixed in: 3.14.0

Vendor Advisories (1)

pipGHSA-jg22-mg44-37j8medium

AIOHTTP is Vulnerable to Deserialization of Untrusted Data

Jun 3, 2026

References

access.redhat.com / errata/RHSA-2026:24977
access.redhat.com / errata/RHSA-2026:34456
access.redhat.com / errata/RHSA-2026:37275
access.redhat.com / errata/RHSA-2026:42644
access.redhat.com / errata/RHSA-2026:43038
access.redhat.com / security/cve/CVE-2026-34993
bugzilla.redhat.com / show_bug.cgi
security.access.redhat.com / data/csaf/v2/vex/2026/cve-2026-34993.json
github.com / aio-libs/aiohttp/commit/dcf40f30637e8752c76781cf6703b5a236749a00
Patch
github.com / aio-libs/aiohttp/security/advisories/GHSA-jg22-mg44-37j8
MitigationPatchVendor Advisory