---
id: CVE-2026-77573
title: >-
  Weblate is a web-based continuous localization platform used to manage
  software translations
summary: >-
  Weblate is a web-based continuous localization platform used to manage
  software translations. In versions prior to 2026.8, a user permitted to manage
  component repository URLs can perform server-side request forgery against
  internal serv…
severity: low
cvss: 3.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N'
cwe:
  - CWE-367
  - CWE-918
published: '2026-08-26'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:09:13.080'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77573'
references:
  - url: >-
      https://github.com/WeblateOrg/weblate/commit/3f31f094eb4f99587607af0085d4fb35461454a1
    label: security-advisories@github.com
  - url: >-
      https://github.com/WeblateOrg/weblate/security/advisories/GHSA-45m9-pf98-8jmq
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00204
epssPercentile: 0.09226
ingestedAt: '2026-09-09T21:22:45.556Z'
---

## Overview

Weblate is a web-based continuous localization platform used to manage software translations. In versions prior to 2026.8, a user permitted to manage component repository URLs can perform server-side request forgery against internal services through DNS rebinding during VCS operations. Weblate validates the hostname's first DNS resolution, but the external VCS clients that later connect perform a separate DNS lookup, so an attacker-controlled hostname that initially resolves to a public address can be re-pointed to an internal or private address before the connection is made. By triggering a clone, fetch, push, or similar remote operation, the attacker can cause Weblate to reach internal VCS-compatible services and potentially expose private repository contents. Installations that permit untrusted repository hostnames while using VCS_RESTRICT_PRIVATE=True are affected. This issue is fixed in version 2026.8.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.