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Vulnerabilities

Vulnerability · CVE-2026-21889

Weblate is a web based localization tool.

Published Jan 14, 2026 · catalog updated Jan 14, 2026 · WeblateOrg

Last checked Nov 3, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-21889. EPSS is 0.39%. Act only if a listed version of WeblateOrg is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Low2.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.39%
Remediation
Version ranges on file
Affected products
vendor WeblateOrg weblate < 5.15.2

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor WeblateOrg weblate < 5.15.2< 5.15.2

How to fix CVE-2026-21889

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-21889. EPSS is 0.39%. Act only if a listed version of WeblateOrg is installed.

Which versions are affected?

Compare what you have installed with WeblateOrg weblate < 5.15.2 < 5.15.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.39%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 14, 2026 · EUVD

    Detected

    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.

  2. Jan 14, 2026 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-21889

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-21889

    30-day exploitation probability 0.39%

    first.org
  • EUVDVulnerability recordEUVD-2026-2452

    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 5.1

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 3, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 3, 2026
  • CVE.orgOct 30, 2026
  • EUVDOct 30, 2026