CVE-2019-3826

6.1 mediumEPSS 2.6%

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.

Severity

CVSS 3.0

6.1 medium

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 2.6% chance of exploitation in the next 30 days; higher than 85% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2019-03-26
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

prometheus:prometheus
redhat:openshift_container_platform

References

https://access.redhat.com/errata/RHBA-2019:0327
https://advisory.checkmarx.net/advisory/CX-2019-4297
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3826
https://github.com/prometheus/prometheus/commit/62e591f9
https://github.com/prometheus/prometheus/pull/5163

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