{"schema_version":"1.9.0","id":"GHSA-wg65-39gg-5wfj","published":"2026-05-05T19:33:47Z","modified":"2026-09-09T15:45:44.428200363Z","aliases":["BIT-prometheus-2026-42151","CVE-2026-42151","GO-2026-5710"],"summary":"Prometheus Azure AD remote write OAuth client secret exposed via config API","details":"### Impact\n\nUsers who use Azure AD remote write with OAuth authentication are impacted.\n\nThe `client_secret` field in the Azure AD remote write OAuth configuration (`storage/remote/azuread`) was typed as `string` instead of `Secret`. Prometheus redacts fields of type `Secret` when serving the configuration via the `/-/config` HTTP API endpoint. Because the field was a plain string, the Azure OAuth client secret was exposed in plaintext to any user or process with access to that endpoint.\n\n### Patches\n\nThe problem has been patched by changing `ClientSecret` in `OAuthConfig` to `Secret`. Users should upgrade to 3.11.3 or 3.5.3 LTS.\n\n### Workarounds\n\nUsers  who can not upgrade can switch to Managed Identity or Workload Identity authentication for Azure AD remote write, which do not involve a client secret.","affected":[{"package":{"name":"github.com/prometheus/prometheus","ecosystem":"Go","purl":"pkg:golang/github.com/prometheus/prometheus"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.45.2"},{"fixed":"0.311.3"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-wg65-39gg-5wfj/GHSA-wg65-39gg-5wfj.json"}}],"references":[{"type":"WEB","url":"https://github.com/prometheus/prometheus/security/advisories/GHSA-wg65-39gg-5wfj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42151"},{"type":"WEB","url":"https://github.com/prometheus/prometheus/pull/18590"},{"type":"WEB","url":"https://github.com/prometheus/prometheus/pull/18587"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60388"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60387"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60386"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:57191"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:56340"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:54427"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:54288"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:53530"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:53415"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:53413"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:53412"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:50874"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:50843"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60389"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60390"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60391"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60441"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60477"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:63103"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-42151"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2466507"},{"type":"PACKAGE","url":"https://github.com/prometheus/prometheus"},{"type":"WEB","url":"https://github.com/prometheus/prometheus/releases/tag/v3.11.3"},{"type":"WEB","url":"https://github.com/prometheus/prometheus/releases/tag/v3.5.3"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42151.json"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:25039"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:25245"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:25504"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:34357"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:34359"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:36651"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:36796"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:36797"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:37267"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:37271"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:37272"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40118"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40262"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40768"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40945"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40970"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40972"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40974"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:41019"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:41030"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:41031"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:41066"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:42146"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:42796"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:42852"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:43052"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:44622"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:47149"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:47952"}],"database_specific":{"cwe_ids":["CWE-200","CWE-256","CWE-312"],"github_reviewed":true,"github_reviewed_at":"2026-05-05T19:33:47Z","nvd_published_at":"2026-05-04T19:16:04Z","severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}