DEBIAN-CVE-2026-44903

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Source

https://security-tracker.debian.org/tracker/CVE-2026-44903

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44903.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-44903

Upstream

CVE-2026-44903

Published

2026-05-26T22:16:43Z

Modified

2026-09-14T17:03:40Z

Severity

6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator

Summary

[none]

Details

Prometheus is an open-source monitoring system and time series database. From 2.49.0 to before 3.5.3 and 3.11.3, in the Prometheus server's legacy web UI (enabled via the command-line flag --enable-feature=old-ui), the histogram heatmap chart view does not escape le label values when inserting them into the HTML for use as axis tick mark labels. An attacker who can inject crafted metrics can execute JavaScript in the browser of any Prometheus user who views the metric in the heatmap chart UI. This vulnerability is fixed in 3.5.3 and 3.11.3.

References

https://security-tracker.debian.org/tracker/CVE-2026-44903

Affected packages

Debian:13 / prometheus

Package

Name: prometheus
Purl: pkg:deb/debian/prometheus?arch=source&distro=trixie

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.53.3+ds1-2

2.53.4+ds1-1

2.53.5+ds1-1

2.53.5+ds1-2

2.53.5+ds1-3

2.53.5+ds1-4

2.53.5+ds1-5

3.*

3.5.3+ds1-1

3.5.3+ds1-2

3.5.3+ds1-3

Ecosystem specific

{
    "urgency":  "unimportant"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44903.json"

Debian:14 / prometheus