Prometheus: Stored XSS via metric names and label values in web UI tooltips and metrics explorer

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-40179 · Microsoft / collected KEV context

EUVD-2026-23123

GHSA-vffh-x6r8-xx99

BIT-prometheus-2026-40179

GO-2026-5662

cve-program · CVE-2026-40179

• https://github.com/prometheus/prometheus/security/advisories/GHSA-vffh-x6r8-xx99
• https://github.com/prometheus/prometheus/pull/18506
• https://github.com/prometheus/prometheus/commit/07c6232d159bfb474a077788be184d87adcfac3c

euvd · EUVD-2026-23123

• https://github.com/prometheus/prometheus/security/advisories/GHSA-vffh-x6r8-xx99
• https://github.com/prometheus/prometheus/pull/18506
• https://github.com/prometheus/prometheus/commit/07c6232d159bfb474a077788be184d87adcfac3c

nvd · CVE-2026-40179

• https://github.com/prometheus/prometheus/commit/07c6232d159bfb474a077788be184d87adcfac3c
• https://github.com/prometheus/prometheus/pull/18506
• https://github.com/prometheus/prometheus/security/advisories/GHSA-vffh-x6r8-xx99

osv · 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

osv · GO-2026-5662

• https://github.com/prometheus/prometheus/security/advisories/GHSA-vffh-x6r8-xx99
• https://github.com/prometheus/prometheus/commit/07c6232d159bfb474a077788be184d87adcfac3c
• https://github.com/prometheus/prometheus/pull/18506

No related operational record is retained in the current change model.