alpine-cve-2026-14199
CVSS 8.1 osv_alpine
Description
Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).
Timeline
- Published
- unknown
- Last Modified
- unknown
CVSS Details
CVSS details not available.
Affected Products
No product information available.
Linked Vulnerabilities
No linked vulnerabilities found.
{
"affected": [
{
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-14199.json"
},
"ecosystem_specific": {},
"package": {
"ecosystem": "Alpine:v3.24",
"name": "grafana",
"purl": "pkg:apk/alpine/grafana?arch=source"
},
"ranges": [
{
"events": [
{
"introduced": "12.4.10"
},
{
"fixed": "12.4.14-r0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).",
"id": "ALPINE-CVE-2026-14199",
"modified": "2026-11-04T22:30:02.827577139Z",
"published": "2026-09-02T16:17:14.517Z",
"references": [
{
"type": "ADVISORY",
"url": "https://security.alpinelinux.org/vuln/CVE-2026-14199"
}
],
"schema_version": "1.9.2",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
],
"upstream": [
"CVE-2026-14199"
]
}