CVE-2026-77508

Weblate: Unverified REST API email changes

Published Aug 26, 2026 CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Weblate
Weblate weblate
Vendors & Products Weblate
Weblate weblate
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Weblate: Unverified REST API email changes
Weaknesses CWE-302
CWE-841
References
Metrics cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 27, 2026, 2:32 PM
Reserved
Aug 20, 2026, 8:23 PM
Status
Deferred
Published
Aug 26, 2026, 8:18 PM
Modified
Sep 9, 2026, 9:09 PM