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Vulnerabilities

Vulnerability · CVE-2019-3826

A stored, DOM based, cross-site scripting (XSS) flaw was found in Prometheus before version 2.7.1.

Published Mar 26, 2019 · catalog updated Jun 17, 2026 · A stored, DOM based,

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2019-3826. EPSS is 2.50%. Act only if a listed version of A stored, DOM based, is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A stored, DOM based,).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.50%
Remediation
Version ranges on file
Affected products
cpe prometheus/prometheus · cpe redhat/openshift container platform

A stored, DOM based, cross-site scripting (XSS) flaw was found in Prometheus before version 2.7.1. An attacker could exploit this by convincing an authenticated user to visit a crafted URL on a Prometheus server, allowing for the execution and persistent storage of arbitrary scripts.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe prometheus/prometheus< 2.7.1
  • cpe redhat/openshift container platform3.11

How to fix CVE-2019-3826

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2019-3826. EPSS is 2.50%. Act only if a listed version of A stored, DOM based, is installed.

Which versions are affected?

Compare what you have installed with redhat/openshift container platform 3.11. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 2.50%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Prometheus security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 26, 2019 · Monitored products — high

    Detected

    A stored, DOM based, cross-site scripting (XSS) flaw was found in Prometheus before version 2.7.1. An attacker could exploit this by convincing an authenticated user to visit a crafted URL on a Prometheus server, allowing for the execution and persistent storage of arbitrary scripts.

  2. Jun 17, 2026 · Monitored products — high

    Updated

    A stored, DOM based, cross-site scripting (XSS) flaw was found in Prometheus before version 2.7.1. An attacker could exploit this by convincing an authenticated user to visit a crafted URL on a Prometheus server, allowing for the execution and persistent storage of arbitrary scripts.

Sources

  • CVE.orgVulnerability recordCVE-2019-3826

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2019-3826

    A stored, DOM based, cross-site scripting (XSS) flaw was found in Prometheus before version 2.7.1. An attacker could exploit this by convincing an authenticated user to visit a crafted URL on a Prometheus server, allowing for the execution and persistent storage of arbitrary scripts.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 3, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • Monitored products — highNov 3, 2026