{"action":"Upgrade github.com/prometheus/prometheus to 0.311.2-0.20260410083055-07c6232d159b or later.","affected":[{"fixed":"3.5.2","introduced":"3.0.0"},{"fixed":"3.11.2","introduced":"3.6.0"},{"fixed":"0.311.2-0.20260410083055-07c6232d159b","introduced":"0"}],"component":"github.com/prometheus/prometheus","cve_ids":["CVE-2026-40179"],"ecosystem":"Go","epss":0.00259,"exploited":false,"fixed_versions":["3.5.2","3.11.2","0.311.2-0.20260410083055-07c6232d159b"],"ghsa_id":"GHSA-vffh-x6r8-xx99","id":"tcs_01M5KFP0MRDB4ZQJF0QNENAA0W","modified_at":"2026-10-06T19:00:43.118066486Z","published_at":"2026-04-13T16:39:16Z","references":["https://osv.dev/vulnerability/GHSA-vffh-x6r8-xx99","https://github.com/prometheus/prometheus/security/advisories/GHSA-vffh-x6r8-xx99","https://nvd.nist.gov/vuln/detail/CVE-2026-40179","https://github.com/prometheus/prometheus/pull/18506","https://github.com/prometheus/prometheus/commit/07c6232d159bfb474a077788be184d87adcfac3c","https://github.com/prometheus/prometheus"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"GHSA-vffh-x6r8-xx99","url":"https://osv.dev/vulnerability/GHSA-vffh-x6r8-xx99"}],"summary":"Prometheus has Stored XSS via metric names and label values in Prometheus web UI tooltips and metrics explorer"}