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.
CVE-2026-41425
This medium-severity CVE scores 5.4 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 99% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.4
- EG Score
- 5.4(medium)
- EG Risk
- 40(Track)EG Risk 40/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity54% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 1%
- KEV
- Not listed
Published
April 24, 2026
Last Modified
April 28, 2026
Advisory Details (1)
Auto-updated Aug 2, 2026Cross-site request forging when using cache · Advisory · authlib/authlib · GitHub
https://github.com/authlib/authlib/security/advisories/GHSA-jj8c-mmj3-mmgvVendor Advisories for CVE-2026-41425(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(4 across 4 ecosystems)
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| python-authlib | 1.2.0-1, 1.2.0-1+deb12u1 | 1.2.0-1+deb12u2 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| python-authlib | 1.6.0-1 ... 1.7.2-2 (13 versions) | — | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| python-authlib | 1.6.0-1 ... 1.6.9-1 (9 versions) | 1.7.0-1 | — |
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| authlib | 0.1 ... 1.6.9 (58 versions) | 1.6.11 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 5× in last 7d / 21× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 137 total refreshes for this CVE.
- 2026-09-12 15:01 UTCEPSS rescore
- 2026-09-11 14:53 UTCEPSS rescore
- 2026-09-11 09:37 UTCEPSS rescore
- 2026-09-10 09:34 UTCEPSS rescore
- 2026-09-08 22:00 UTCEPSS rescore
- 2026-09-06 13:47 UTCEPSS rescore
- 2026-09-04 05:06 UTCEPSS rescore
- 2026-09-04 02:59 UTCOSV refresh
- 2026-09-01 13:53 UTCEPSS rescore
- 2026-09-01 04:39 UTCEPSS rescore
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-28 21:41 UTCEPSS rescore
- 2026-08-27 14:25 UTCEPSS rescore
- 2026-08-26 14:46 UTCEPSS rescore
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-21 23:49 UTCEPSS rescore
- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-17 14:46 UTCEG score recompute
- 2026-08-17 14:46 UTCVendor advisory
- 2026-08-17 13:47 UTCEPSS rescore
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 05:44 UTCEG score recompute
- 2026-08-16 05:44 UTCVendor advisory
- 2026-08-16 02:14 UTCEPSS rescore
- 2026-08-15 01:30 UTCEPSS rescore
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- 2026-08-14 04:05 UTCEG score recompute
- 2026-08-14 04:05 UTCVendor advisory
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-12 17:46 UTCEG score recompute
- 2026-08-12 17:46 UTCVendor advisory
- 2026-08-12 13:51 UTCEPSS rescore
- 2026-08-11 16:40 UTCEG score recompute
- 2026-08-11 16:40 UTCVendor advisory
- 2026-08-11 13:43 UTCEPSS rescore
- 2026-08-10 12:47 UTCEG score recompute
- 2026-08-10 12:47 UTCVendor advisory
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-09 12:38 UTCEG score recompute
- 2026-08-09 12:38 UTCVendor advisory
- 2026-08-08 16:37 UTCEPSS rescore
- 2026-08-08 12:25 UTCEG score recompute
- 2026-08-08 12:25 UTCVendor advisory
- 2026-08-07 12:31 UTCEG score recompute
- 2026-08-07 12:31 UTCVendor advisory
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-05 22:54 UTCEG score recompute
- 2026-08-05 22:54 UTCVendor advisory
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-04 15:10 UTCEPSS rescore
- 2026-08-04 10:38 UTCEPSS rescore
- 2026-08-03 20:59 UTCEG score recompute
- 2026-08-03 20:59 UTCVendor advisory
- 2026-08-03 10:36 UTCEPSS rescore
- 2026-08-02 10:56 UTCEG score recompute
- 2026-08-02 10:56 UTCVendor advisory
- 2026-08-01 04:16 UTCEPSS rescore
- 2026-07-30 16:28 UTCEPSS rescore
- 2026-07-30 01:30 UTCEPSS rescore
- 2026-07-28 15:36 UTCEPSS rescore
- 2026-07-27 14:13 UTCEPSS rescore
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-25 14:18 UTCEPSS rescore
- 2026-07-24 14:17 UTCEPSS rescore
- 2026-07-23 03:11 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 22:38 UTCOSV refresh
- 2026-07-19 14:31 UTCEPSS rescore
- 2026-07-16 17:03 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-13 22:30 UTCEPSS rescore
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-09 19:10 UTCEPSS rescore
- 2026-07-08 15:15 UTCEPSS rescore
- 2026-07-07 13:46 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-29 14:06 UTCEPSS rescore
- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-27 03:08 UTCEPSS rescore
- 2026-06-23 21:33 UTCEPSS rescore
- 2026-06-22 14:25 UTCEPSS rescore
- 2026-06-22 14:25 UTCEPSS rescore
- 2026-06-21 14:56 UTCEPSS rescore
- 2026-06-21 14:56 UTCEPSS rescore
- 2026-06-19 19:25 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-17 17:53 UTCEPSS rescore
- 2026-06-15 17:49 UTCEPSS rescore
- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-11 14:00 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 13:22 UTCEPSS rescore
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Same vendor
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- CVE-2004-1010EG 10.0EPSS p95HIGH
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- CVE-2004-0981EG 10.0EPSS p93HIGH
- CVE-2004-0882EG 10.0EPSS p96HIGH
- CVE-2004-0888EG 10.0EPSS p95HIGH
- CVE-2004-1012EG 10.0EPSS p93HIGH
- CVE-2004-1013EG 10.0EPSS p93HIGH
- CVE-2004-1018EG 10.0EPSS p97HIGH
Frequently asked(5)
What is CVE-2026-41425?
When was CVE-2026-41425 disclosed?
Is CVE-2026-41425 actively exploited?
What is the CVSS score of CVE-2026-41425?
How do I remediate CVE-2026-41425?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-41425
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