CVE-2026-21889 json
Weblate leaks information via screenshots
published 2026-01-14 9 mo ago modified 2026-07-07 4 mo ago also EUVD-2026-2452 , GHSA-3g2f-4rjg-9385 , PYSEC-2026-2037
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 33%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- pypi weblate 5.15.2
- weblate weblate 5.15.2
- weblate openSUSE Tumbleweed 5.16-1.1
opensuse advisories openSUSE-SU-2026:10240-1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 9 mo ago
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.3 | CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N |
| CNA | 4.0 | 2.3 | CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | weblate | <5.15.2 |
5.15.2 |
Affected products
- WeblateOrg weblate
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
github.com
/WeblateOrg/weblate/pull/17516
web, issue-tracking
-
github.com
/WeblateOrg/weblate/commit/a6eb5fd0299780eca286be8ff187dc2d10feec47
web, patch
-
github.com
/WeblateOrg/weblate/security/advisories/GHSA-3g2f-4rjg-9385
web, patch, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-21889
advisory
-
github.com
/WeblateOrg/weblate
package
-
pypi.org
/project/weblate
package
-
github.com
/advisories/GHSA-3g2f-4rjg-9385
advisory
Sources
- CVE List CVE-2026-21889
- GitHub Advisory GHSA-3g2f-4rjg-9385
- NVD CVE-2026-21889
- OSV PYSEC-2026-2037
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.