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.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 30 Oct 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Prometheus through 3.15.1 Credential Leak via remote_write Cross-Host Redirects | |
| First Time appeared |
Prometheus
Prometheus prometheus |
|
| Weaknesses | CWE-522 | |
| CPEs | cpe:2.3:a:prometheus:prometheus:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Prometheus
Prometheus prometheus |
|
| References |
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|
| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-30T11:31:13.086Z
Reserved: 2026-10-30T10:53:31.951Z
Link: CVE-2026-119566
No data.
Status : Awaiting Analysis
Published: 2026-10-30T12:16:44.287
Modified: 2026-10-30T19:14:38.697
Link: CVE-2026-119566
No data.
OpenCVE Enrichment
Updated: 2026-10-30T13:15:15Z
Weaknesses