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CVE-2026-40179

🗓️ 15 Apr 2026 22:26:46Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 265 Views🌐 WEB

Prometheus web UI stored XSS via metric names and label values; fixed in 3.5.2 and 3.11.2.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-40179
15 Apr 202622:26
–attackerkb
alpinelinux
AlpineLinux
CVE-2026-40179
15 Apr 202622:26
–alpinelinux
githubexploit
GithubExploit
Exploit for Cross-site Scripting in Prometheus
19 Aug 202608:43
–githubexploit
cgr
Chainguard
CVE-2026-40179 vulnerabilities
14 Apr 202601:17
–cgr
circl
Circl
CVE-2026-40179
22 Aug 202619:00
–circl
cnnvd
CNNVD
Prometheus security vulnerabilities
15 Apr 202600:00
–cnnvd
cvelist
Cvelist
CVE-2026-40179 Prometheus: Stored XSS via metric names and label values in web UI tooltips and metrics explorer
15 Apr 202622:26
–cvelist
debiancve
Debian CVE
CVE-2026-40179
15 Apr 202622:26
–debiancve
github
Github Security Blog
Prometheus has Stored XSS via metric names and label values in Prometheus web UI tooltips and metrics explorer
13 Apr 202616:39
–github
kitploit
Kitploit
CVE-2026-40179-PoC
23 Oct 202619:56
–kitploit
Rows per page
NVD
Vulners
Node
OR
prometheusprometheusRange3.0.0–3.5.2
prometheusprometheusRange3.6.0–3.11.2
[
  {
    "vendor": "prometheus",
    "product": "prometheus",
    "versions": [
      {
        "version": ">= 3.0.0, < 3.5.2",
        "status": "affected"
      },
      {
        "version": ">= 3.6.0, < 3.11.2",
        "status": "affected"
      },
      {
        "version": "< 0.311.2-0.20260410083055-07c6232d159b",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
WriteRequestrequest body/api/v1/writeUnauthenticated remote write endpoint where an attacker can inject a time series with a malicious metric name containing HTML/JavaScript, leading to stored XSS in the Prometheus web UI.CWE-79
match[]query param/api/v1/admin/tsdb/delete_seriesAdmin API endpoint used to delete series; while not the primary XSS vector, it is mentioned as a management path for the injected data.CWE-79

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17 Jun 2026 10:44Current
7.2High risk
Vulners AI Score7.2
CVSS 3.16.1
CVSS 45.3
EPSS0.00259
SSVC
265