What is CVE-2026-41519?

CVE-2026-41519 is a medium-severity vulnerability in Weblate, classified under Insufficient Session Expiration. CVSS score: 4.2/10. Published 2026-05-07.

How severe is CVE-2026-41519?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Vulnerability in Weblate

CVE-2026-41519

Weblate is a web based localization tool. Prior to version 5.17.1, when a user changes their password, browser sessions are correctly invalidated via "cycle_session_keys()", but DRF API tokens ("wlu_*" prefix) stored in "authtoken_token" are not revoked. This issue has been patched in version 5.17.1.

Published 2026-05-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (28.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Weblate
Weblateorg Weblate — versions < 5.17.1

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

github.com/WeblateOrg/weblate/security/advisories/GHSA-6j8j-4qp3-36p2 (Patch, Vendor Advisory)
github.com/WeblateOrg/weblate/pull/19057 (Patch, Issue Tracking)
github.com/WeblateOrg/weblate/commit/649a2da81700542f95c0807b3c625fc3bb0eaf95 (Patch)
github.com/WeblateOrg/weblate/releases/tag/weblate-5.17.1 (Release Notes)

Frequently asked questions

What is CVE-2026-41519?: CVE-2026-41519 is a medium-severity vulnerability in Weblate, classified under Insufficient Session Expiration. CVSS score: 4.2/10. Published 2026-05-07.
How severe is CVE-2026-41519?: Medium severity. CVSS v3 base score is 4.2 out of 10.