CVE-2026-75889
CVE-2026-75889 CVE Record
Published 2 mo ago · modified 2 mo ago · JSON
Summary
Grafana Alloy’s prometheus.operator.servicemonitors component allows a user who can create or modify ServiceMonitor resources in a watched namespace to specify an arbitrary local file through bearerTokenFile. Alloy reads the file and sends its contents as a bearer token to an attacker-controlled scrape endpoint. This may disclose files accessible to the Alloy process, including its projected Kubernetes service account token, potentially granting the attacker Alloy’s Kubernetes permissions. Exploitation requires ServiceMonitor write access and lower privileges than Alloy’s service account.
CISA SSVC assessment
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction (EPSS)
0.22% probability of exploitation in the next 30 days, higher than 12% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| CNA | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| CNA | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
Affected products
- Grafana Alloy
Classification
- Weakness
- CWE-552 Files or Directories Accessible to External Parties
References
- grafana.com /security/security-advisories/cve-2026-75889 · vendor-advisory
Sources
- CVE List: CVE-2026-75889
- NVD: CVE-2026-75889
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