NuytsTech Security

CVE-2026-28377

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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 information : https://grafana.com/security/security-advisories/cve-2026-28377

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