CVE-2026-77508CWE-302CWE-841

CVE-2026-77508

Low · published August 27, 2026

CVSS v3.1
3.5
EPSS
0%
Percentile
4.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.5 · LOW
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00152 · 4.7th percentile
Weaknesses
CWE-302 · Authentication Bypass by Assumed-Immutable Data; CWE-841 · Improper Enforcement of Behavioral Workflow
Published
2026-08-27T00:18Z
References (2)
https://github.com/WeblateOrg/weblate/pull/20639 · [email protected]https://github.com/WeblateOrg/weblate/security/advisories/GHSA-x84p-6892-473c · [email protected]
EPSS history
Timeline
  • 28 AUG 06:53Z
    EPSS moved — → 0%
    epss
  • 26 AUG 19:56Z
    Weblate: Unverified REST API email changes
    cvelistv5