{"id":"CVE-2026-41654","aliases":["GHSA-cwcx-382v-8m9g","PYSEC-2026-2317"],"url":"https://o3.security/vulnerability/CVE-2026-41654","summary":"Weblate is Vulnerable to Authenticated SSRF via Project Backup Import bypassing validate_repo_url","details":"### Impact\nAn 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)`.\n\n### Patches\n* https://github.com/WeblateOrg/weblate/pull/19061\n* https://github.com/WeblateOrg/weblate/pull/19062 \n\n### Workarounds\nLimiting who can create projects limits the scope.\n\n### Resources\nWeblate thanks @fg0x0 for reporting this vulnerability via GitHub.","published":"2026-05-07T13:40:12.532Z","modified":"2026-08-12T03:51:48.574081455Z","cvss":null,"epss":{"score":0.00371,"percentile":0.30868,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"weblate","fixedVersion":"5.17.1"}],"fix":{"url":"https://github.com/WeblateOrg/weblate/commit/e1eff1f517c1ee315d69581910baaabb724e5ef0","label":"WeblateOrg/weblate@e1eff1f"},"references":[{"type":"WEB","url":"https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.17.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41654.json"},{"type":"ADVISORY","url":"https://github.com/WeblateOrg/weblate/security/advisories/GHSA-cwcx-382v-8m9g"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41654"},{"type":"FIX","url":"https://github.com/WeblateOrg/weblate/commit/e1eff1f517c1ee315d69581910baaabb724e5ef0"},{"type":"FIX","url":"https://github.com/WeblateOrg/weblate/commit/e4b67a76d95d5165ecb9937f7485fd79223b7f14"},{"type":"FIX","url":"https://github.com/WeblateOrg/weblate/pull/19061"},{"type":"FIX","url":"https://github.com/WeblateOrg/weblate/pull/19062"},{"type":"PACKAGE","url":"https://github.com/WeblateOrg/weblate"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:48.574081455Z"}}