TNCVE-2026-28377 | Vulnetix

TNCVE-2026-28377 PUBLISHED

Record from tenable · Published March 26, 2026

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.

Timeline

Mar 26, 2026 CVE Published

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vulnetix vdb vuln TNCVE-2026-28377
vulnetix vdb fixes TNCVE-2026-28377

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curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/TNCVE-2026-28377/fixes/registry"

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References

Tenable: CVE-2026-28377 advisory

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