CVE-2026-119566

NameCVE-2026-119566
DescriptionPrometheus through 3.15.1 contains a credential leak vulnerability that allows attackers to capture Azure AD or Google IAM bearer tokens by redirecting remote_write requests to another host. Attackers controlling the remote-write endpoint or a redirecting server can return a 3xx to their host and replay the token, for example to write metrics to the victim's backend.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
golang-github-prometheus-common (PTS)bookworm0.39.0-2vulnerable
trixie0.62.0-3vulnerable
forky, sid0.69.0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
golang-github-prometheus-commonsource(unstable)0.69.0-1

Notes

https://github.com/prometheus/common/pull/901
Fixed by: https://github.com/prometheus/common/commit/0d8de871b3f26108faccbd9c935f406012b3d776 (v0.69.0)

Search for package or bug name: Reporting problems