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Advisory record · GHSA-cwcx-382v-8m9g

Weblate Vulnerable to Authenticated SSRF via Project Backup Import bypassing validate_repo_url

CVSS 5.3 MediumEPSS 0.0037 · 31st percentile

Published by the GitHub Advisory Database at 30 Apr 2026, 17:28 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
weblatePyPI<5.17.15.17.1
Identifiers
GHSA-cwcx-382v-8m9g · CVE-2026-41654 · PYSEC-2026-2317
Weakness (CWE)
CWE-20 · CWE-918
Tags
Published
30 Apr 2026
Updated
13 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Weblate versions before 5.17.1 are vulnerable to server-side request forgery. An authenticated user with permission to create projects can import a crafted project backup that sets a component's repository URL to a private address or a disallowed scheme, bypassing the URL validation. The fix is to upgrade to Weblate 5.17.1. Limiting which users can create projects reduces exposure.

Written 6 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.3 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0037, the 31st percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:04 UTC First seen by agentprime
  2. 31 Oct 2026, 15:04 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.