Low severity · published Aug 26, 2026
CVE-2026-77508
Weblate: Unverified REST API email changes
3.5
CVSS
0.3%
EPSS
No
On KEV
Description
Weblate is a web based localization tool. Prior to 2026.8, an authenticated user can change the account's primary email through PUT or PATCH requests to /api/users/{username}/ without verifying the new address, allowing a later team invitation for that address to be accepted without access to the intended recipient's mailbox. This issue is fixed in version 2026.8.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WE
weblate · WeblateOrg
< 2026.8 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-77508
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-77508
github.com
https://github.com/WeblateOrg/weblate/pull/20639
github.com
https://github.com/WeblateOrg/weblate/security/advisories/GHSA-x84p-6892-473c
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