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CVE-2026-28377
Published: Mar 26, 2026
Modified: May 13, 2026
PUBLISHED
CVSS v3.1
7.5
HIGH
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.
| Vendor | Product | Versions |
|---|---|---|
Grafana | Tempo | affected 2.10.3 |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
References
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