{
"id": "GHSA-vmfc-9982-2m45",
"aliases": [
"CVE-2026-50127"
],
"details": "### Impact\n\nWeblate'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.\n\n### Patches\n\n* https://github.com/WeblateOrg/weblate/pull/19768\n\n### Resources\n\nThe issue was reported by @tonghuaroot via GitHub, and the same user also provided the initial patch.",
"summary": "Weblate SSRF: outbound URL guard misses some private ranges",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.15"
},
{
"fixed": "2026.6"
}
]
}
],
"package": {
"name": "weblate",
"ecosystem": "PyPI"
}
}
],
"modified": "2026-07-07T23:46:33Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"published": "2026-07-07T23:46:33Z",
"references": [
{
"url": "https://github.com/WeblateOrg/weblate/security/advisories/GHSA-vmfc-9982-2m45",
"type": "WEB"
},
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50127",
"type": "ADVISORY"
},
{
"url": "https://github.com/WeblateOrg/weblate/pull/19768",
"type": "WEB"
},
{
"url": "https://github.com/WeblateOrg/weblate",
"type": "PACKAGE"
},
{
"url": "https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.6",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-918"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": "2026-06-10T20:17:29Z",
"github_reviewed_at": "2026-07-07T23:46:33Z"
}
}