Medium severity · published Apr 15, 2026
CVE-2026-33220
Weblate: JavaScript localization CDN add-on allows arbitrary local file read outside the repository
6.8
CVSS
0.3%
EPSS
No
On KEV
Description
Weblate is a web based localization tool. In versions prior to 5.17, the translation memory API exposed unintended endpoints, which in turn didn't perform proper access control. This issue has been fixed in version 5.17. If developers are unable to update immediately, they can disable this feature as the CDN add-on is not enabled by default.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WE
weblate · WeblateOrg
< 5.17 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-33220
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-33220
Issue Tracking
https://github.com/WeblateOrg/weblate/pull/18516
Third Party Advisory
https://github.com/WeblateOrg/weblate/security/advisories/GHSA-mqph-7h49-hqfm
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