Medium severity4.8NVD Advisory· Published Oct 30, 2026
CVE-2026-119566
CVE-2026-119566
Description
Prometheus 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=3.15.1
Patches
Vulnerability mechanics
References
5- abraxaslabs.tech/research/prometheus-bearer-redirectnvd
- github.com/prometheus/common/pull/901nvd
- github.com/prometheus/prometheus/blob/v3.15.1/storage/remote/azuread/azuread.gonvd
- github.com/prometheus/prometheus/blob/v3.15.1/storage/remote/client.gonvd
- www.vulncheck.com/advisories/prometheus-through-3.15.1-credential-leak-via-remote-write-cross-host-redirectsnvd
News mentions
0No linked articles in our index yet.