PT-2026-2916 · Weblate · Weblate

Lukas May + 1 · Published 2026-01-14 · Updated 2026-02-23 · CVE-2026-21889

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Weblate versions prior to 5.15.2

Description Weblate is a web-based localization tool. Prior to version 5.15.2, screenshot images were served directly by the HTTP server without appropriate access controls. This allowed an unauthenticated user to potentially access screenshots by correctly guessing the filename.

Recommendations Update Weblate to version 5.15.2 or later.

Exploit

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2026-21889

GHSA-3G2F-4RJG-9385

OPENSUSE-SU-2026:10240-1

Affected Products

Weblate

References · 14

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21889.json · Exploit
• https://github.com/WeblateOrg/weblate/commit/a6eb5fd0299780eca286be8ff187dc2d10feec47 · Patch
• https://github.com/WeblateOrg/weblate/security/advisories/GHSA-3g2f-4rjg-9385 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-21889 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-3g2f-4rjg-9385 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21889 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10240-1 · Vendor Advisory
• https://github.com/WeblateOrg/weblate · Note
• https://github.com/WeblateOrg/weblate/pull/17516 · Note
• https://suse.com/security/cve/CVE-2026-21889 · Note
• https://twitter.com/CVEnew/status/2011555167796334645 · Twitter Post
• https://twitter.com/_cvereports/status/2011544727393333673 · Twitter Post
• https://t.me/cveNotify/149674 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2011677277122076984 · Twitter Post