{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-28377", "assignerOrgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da", "state": "PUBLISHED", "assignerShortName": "GRAFANA", "dateReserved": "2026-02-27T07:16:12.218Z", "datePublished": "2026-03-26T21:39:46.928Z", "dateUpdated": "2026-07-10T18:44:44.328Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da", "shortName": "GRAFANA", "dateUpdated": "2026-07-10T18:44:44.328Z" }, "datePublic": "2026-03-26T21:34:51.017Z", "title": "S3 SSE-C Encryption Key Exposed in Plaintext via Config Endpoint (CVE-2025-41118 Pattern)", "descriptions": [ { "lang": "en", "value": "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.\n\nThanks to william_goodfellow for reporting this vulnerability." } ], "affected": [ { "vendor": "Grafana", "product": "Tempo", "defaultStatus": "unaffected", "versions": [ { "version": "2.10.3", "status": "affected", "versionType": "semver" } ] } ], "references": [ { "url": "https://grafana.com/security/security-advisories/cve-2026-28377", "tags": [ "vendor-advisory" ] } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "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" } } ], "source": { "discovery": "BUG_BOUNTY" }, "x_generator": { "engine": "cvelib 1.8.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-326", "lang": "en", "description": "CWE-326 Inadequate Encryption Strength" } ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-03-27T13:29:52.402572Z", "id": "CVE-2026-28377", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-27T13:54:56.438Z" } } ] } }