CVE-2026-41654
Weblate Vulnerable to Authenticated SSRF via Project Backup Import bypassing validate_repo_url
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | weblate | < 5.17.1 | 5.17.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Weblate | Weblate | before 5.17.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-cwcx-382v-8m9g
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2026-41654
- https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.17.1