DEBIAN-CVE-2026-42151
Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the client_secret field in the Azure AD remote write OAuth configuration (storage/remote/azuread) was typed as string instead of Secret. Prometheus redacts fields of type Secret when serving the configuration via the /-/config HTTP API endpoint. Because the field was a plain string, the Azure OAuth client secret was exposed in plaintext to any user or process with access to that endpoint. This issue has been patched in versions 3.5.3 and 3.11.3.
DEBIAN-CVE-2026-42151
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-42151
prometheus
Source reference: /affected/0/package/name
- Affected versions
- 2.53.3+ds1-2
Source reference:
/affected/0/versions2.53.4+ds1-1Source reference:
/affected/0/versions2.53.5+ds1-1Source reference:
/affected/0/versions2.53.5+ds1-2Source reference:
/affected/0/versions2.53.5+ds1-3Source reference:
/affected/0/versions2.53.5+ds1-4Source reference:
/affected/0/versions2.53.5+ds1-5Source reference:
/affected/0/versions3.5.3+ds1-1Source reference:
/affected/0/versions3.5.3+ds1-2Source reference:
/affected/0/versions3.5.3+ds1-3Source reference:
/affected/0/versions3.5.3+ds1-4Source reference:
/affected/0/versions3.5.3+ds1-5Source reference:
/affected/0/versions3.5.3+ds1-6~exp1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
prometheus
Source reference: /affected/1/package/name
- Affected versions
- 2.53.3+ds1-2
Source reference:
/affected/1/versions2.53.4+ds1-1Source reference:
/affected/1/versions2.53.5+ds1-1Source reference:
/affected/1/versions2.53.5+ds1-2Source reference:
/affected/1/versions2.53.5+ds1-3Source reference:
/affected/1/versions2.53.5+ds1-4Source reference:
/affected/1/versions2.53.5+ds1-5Source reference:
/affected/1/versions - Fixed versions
- 3.5.3+ds1-1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "prometheus",
"purl": "pkg:deb/debian/prometheus?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2.53.3+ds1-2",
"2.53.4+ds1-1",
"2.53.5+ds1-1",
"2.53.5+ds1-2",
"2.53.5+ds1-3",
"2.53.5+ds1-4",
"2.53.5+ds1-5",
"3.5.3+ds1-1",
"3.5.3+ds1-2",
"3.5.3+ds1-3",
"3.5.3+ds1-4",
"3.5.3+ds1-5",
"3.5.3+ds1-6~exp1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42151.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.3+ds1-1"
}
]
}
],
"package": {
"name": "prometheus",
"purl": "pkg:deb/debian/prometheus?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.53.3+ds1-2",
"2.53.4+ds1-1",
"2.53.5+ds1-1",
"2.53.5+ds1-2",
"2.53.5+ds1-3",
"2.53.5+ds1-4",
"2.53.5+ds1-5"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42151.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56932 · Revision 1
- Added to Heist Feed
- Publisher date