In short
- CVE-2026-28377 is a HIGH (CVSS 7.5) vulnerability affecting github.com/grafana/tempo, tempo (grafana).
- Chance of exploitation in the next 30 days (EPSS): 0.16%, higher than 5.3% of all vulnerabilities.
- Fix: update to 2.10.3 or later.
Description
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.
NVD description
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.
Thanks to william_goodfellow for reporting this vulnerability.
More vulnerabilities in github.com/grafana/tempo
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