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CVE-2026-41425

20
FAUCET Score

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.11, there is no CSRF protection on the cache feature in authlib.integrations.starlette_client.OAuth. This vulnerability is fixed in 1.6.11.

First published: Apr 24, 2026Last modified: Apr 27, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 1.6.11CPE matchmatch criteria
cpe:2.3:a:authlib:authlib:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.11%
Probability of exploitation in next 30 days
EPSS Percentile
1.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0011 is in the 0th percentile among its peer group of 26,234 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

pippatch availablevia ghsa
Product: authlibFixed in: 1.6.11
ubuntupatch availablevia ubuntu_usn
Product: python-authlib (jammy)Fixed in: 0.15.5-1ubuntu0.1~esm2
ubuntupatch availablevia ubuntu_usn
Product: python-authlib (noble)Fixed in: 1.3.0-1ubuntu0.1~esm2
ubuntupatch availablevia ubuntu_usn
Product: python-authlib (resolute)Fixed in: 1.6.7-1ubuntu0.1~esm1
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

ubuntuUSN-8557-1

Authlib vulnerabilities

Jul 16, 2026
pipGHSA-jj8c-mmj3-mmgvmedium

Authlib: Cross-site request forging when using cache

Apr 16, 2026

References

github.com / authlib/authlib/security/advisories/GHSA-jj8c-mmj3-mmgv
ExploitVendor Advisory