GHSA-vmfc-9982-2m45

Suggest an improvement
Source
https://github.com/advisories/GHSA-vmfc-9982-2m45
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-vmfc-9982-2m45/GHSA-vmfc-9982-2m45.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-vmfc-9982-2m45
Aliases
Published
2026-07-07T23:46:33Z
Modified
2026-07-08T00:00:17.901498040Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
Weblate SSRF: outbound URL guard misses some private ranges
Details

Impact

Weblate's VCS_RESTRICT_PRIVATE did not properly account for some transitional IPv6 ranges, multicast addresses, or some semi-private IPv4 ranges, which allowed some addresses to bypass private range restrictions.

Patches

  • https://github.com/WeblateOrg/weblate/pull/19768

Resources

The issue was reported by @tonghuaroot via GitHub, and the same user also provided the initial patch.

Database specific 
{
    "github_reviewed": true,
    "nvd_published_at": "2026-06-10T20:17:29Z",
    "cwe_ids": [
        "CWE-918"
    ],
    "severity": "MODERATE",
    "github_reviewed_at": "2026-07-07T23:46:33Z"
}
References

Affected packages

PyPI / weblate

Package

Name
weblate
View open source insights on deps.dev
Purl
pkg:pypi/weblate

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.15
Fixed
2026.6

Affected versions

5.*
5.15
5.15.1
5.15.2
5.16
5.16.1
5.16.2
5.17
5.17.1
2026.*
2026.5

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-vmfc-9982-2m45/GHSA-vmfc-9982-2m45.json"