CVE-2026-41654
Weblate is Vulnerable to Authenticated SSRF via Project Backup Import bypassing validate_repo_url
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Description
Weblate is a web based localization tool. Prior to version 5.17.1, an authenticated user with project.add permission (default on hosted Weblate SaaS and for any user holding an active billing/trial plan) can import a crafted project backup ZIP whose components/<name>.json contains an attacker-chosen repo URL pointing at a private address (e.g. http://127.0.0.1:9999/) or using a non-allow-listed scheme (e.g. file://, git://). Weblate persists the component via Component.objects.bulk_create([component])[0], which bypasses Django's full_clean() and therefore never runs the validate_repo_url validator. The URL is subsequently written verbatim into .git/config by configure_repo(pull=False). This issue has been patched in version 5.17.1.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-cwcx-382v-8m9g
- https://github.com/WeblateOrg/weblate/pull/19061
- https://github.com/WeblateOrg/weblate/pull/19062
- https://github.com/WeblateOrg/weblate/commit/e1eff1f517c1ee315d69581910baaabb724e5ef0
- https://github.com/WeblateOrg/weblate/commit/e4b67a76d95d5165ecb9937f7485fd79223b7f14
References (6)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- NONE
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