CVE Explorer
CVE-2026-28377
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.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Tempo","vendor":"Grafana","versions":[{"status":"affected","version":"2.10.3","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:2942a7f6578c37ba68adc37ce43210e194848b3351c5f00d0dda11680cfa4250 · sha256:5b5977391b709fbe… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:2942a7f6578c37ba68adc37ce43210e194848b3351c5f00d0dda11680cfa4250 · sha256:5b5977391b709fbe… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-326","description":"CWE-326 Inadequate Encryption Strength","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:2942a7f6578c37ba68adc37ce43210e194848b3351c5f00d0dda11680cfa4250 · sha256:5b5977391b709fbe… · /containers/adp/0/problemTypes/0/descriptions/0
Source references
1 source assertion{"tags":["vendor-advisory"],"url":"https://grafana.com/security/security-advisories/cve-2026-28377"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2942a7f6578c37ba68adc37ce43210e194848b3351c5f00d0dda11680cfa4250 · sha256:5b5977391b709fbe… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.