Medium 5.3Published May 7, 2026

CVE-2026-41654Weblate is Vulnerable to Authenticated SSRF via Project Backup Import bypassing validate_repo_url

Updated under an hour ago (Oct 28, 2026, 12:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
Weakness (CWE): CWE-20, CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: May 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

WeblateOrg weblate weblateorg:weblate (from the name)	before 5.17.1	CNA record
weblate weblate weblate:weblate	before 5.17.1	NVD

References

References

https://github.com/WeblateOrg/weblate/security/advisories/GHSA-cwcx-382v-8m9g	x-refsource-confirm, patch, vendor-advisory
https://github.com/WeblateOrg/weblate/pull/19061	x-refsource-misc, issue-tracking, patch
https://github.com/WeblateOrg/weblate/pull/19062	x-refsource-misc, issue-tracking, patch
https://github.com/WeblateOrg/weblate/commit/e1eff1f517c1ee315d69581910baaabb724e5ef0	x-refsource-misc, patch
https://github.com/WeblateOrg/weblate/commit/e4b67a76d95d5165ecb9937f7485fd79223b7f14	x-refsource-misc, patch
https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.17.1	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.