High severity · published Jan 14, 2026
CVE-2026-21889
Weblate leaks information via screenshots
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
Weblate is a web based localization tool. Prior to 5.15.2, the screenshot images were served directly by the HTTP server without proper access control. This could allow an unauthenticated user to access screenshots after guessing their filename. This vulnerability is fixed in 5.15.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WE
weblate · WeblateOrg
< 5.15.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-21889
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-21889
Patch
https://github.com/WeblateOrg/weblate/commit/a6eb5fd0299780eca286be8ff187dc2d10feec47
Issue Tracking
https://github.com/WeblateOrg/weblate/pull/17516
Patch
https://github.com/WeblateOrg/weblate/security/advisories/GHSA-3g2f-4rjg-9385
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