CVE-2026-41654
### Impact 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)`. ### Patches * https://github.com/WeblateOrg/weblate/pull/19061 * https://github.com/WeblateOrg/weblate/pull/19062 ### Workarounds Limiting who can create projects limits the scope. ### Resources Weblate thanks @fg0x0 for reporting this vulnerability via GitHub.
Properties
- Severity
- HIGH
- Summary
- Weblate Vulnerable to Authenticated SSRF via Project Backup Import bypassing validate_repo_url
- Cvss score
- 8.1
- Epss score
- 0.00371
- Retrieved at
- 2026-10-25T14:50:33+00:00
- Ghsa published
- 2026-04-30T17:28:41Z
- Source url
- https://github.com/advisories/GHSA-cwcx-382v-8m9g
- Ghsa updated
- 2026-04-30T17:28:42Z
- Ghsa id
- GHSA-cwcx-382v-8m9g
- Last source
- FIRST EPSS
- Cve id
- CVE-2026-41654
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- In Signal since
- initial import (Sep 2026)
- Name
- CVE-2026-41654
- Is ghsa only
- false
- Epss percentile
- 0.30808
Related Entities (4)
HAS_WEAKNESS (2)
AFFECTS (1)
VULNERABLE_TO (1)
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