GHSA-ffqx-q65f-36jf

Grafana Tempo has Inadequate Encryption Strength

Source: GitHub Advisory Database (reviewed) High CVE-2026-28377

Packages

Ecosystem	Package	Affected	Fixed in
Go	github.com/grafana/tempo	< 2.10.3	2.10.3

Details

As written in the advisory (Markdown source, shown as plain text).

A vulnerability in Grafana Tempo exposes the S3 SSE-C encryption key in plaintext through the /status/config endpoint, potentially allowing unauthorized users to obtain the key used to encrypt trace data stored in S3.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2026-28377 advisory
https://github.com/grafana/tempo/commit/bb8ca663db34a0980c9758b40d918fda3b4dbec3 web
https://github.com/advisories/GHSA-ffqx-q65f-36jf advisory
https://github.com/grafana/tempo package
https://github.com/grafana/tempo/blob/4dc3e5b0d3463a0b67498b662b85a148698b4afd/CHANGELOG.md?plain=1#L135 web
https://grafana.com/security/security-advisories/cve-2026-28377 web