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Medium · 4.1 CVE-2026-39845 EUVD-2026-23018GHSA-f8hv-g549-hwg2PYSEC-2026-156

Weblate: SSRF via the webhook add-on using unprotected fetch_url()

Published Apr 15, 2026 · Updated Apr 15, 2026 · Assigned by GitHub_M

Description

Weblate is a web based localization tool. In versions prior to 5.17, the webhook add-on did not utilize existing SSRF protections. This issue has been fixed in version 5.17. If developers are unable to update immediately, they can disable the webhook add-on as a workaround.

Affected products

VendorProductAffectedFixed
WeblateOrg weblate < 5.17 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI weblate < 5.17 5.17 GHSA-f8hv-g549-hwg2

References