UBUNTU-CVE-2026-44903

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Source
https://ubuntu.com/security/CVE-2026-44903
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44903.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-44903
Upstream
Published
2026-05-26T22:16:00Z
Modified
2026-06-08T09:45:11.390080229Z
Severity
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
  • 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
  • Ubuntu - medium
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

Affected packages

Ubuntu:16.04:LTS
prometheus

Package

Name
prometheus
Purl
pkg:deb/ubuntu/prometheus?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.14.0+ds-1
0.16.2+ds-1
0.16.2+ds-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.16.2+ds-1ubuntu1",
            "binary_name": "prometheus"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44903.json"
Ubuntu:18.04:LTS
prometheus

Package

Name
prometheus
Purl
pkg:deb/ubuntu/prometheus?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.7.1+ds-1
1.8.1+ds-2
2.*
2.1.0+ds-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "prometheus",
            "binary_version": "2.1.0+ds-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44903.json"
Ubuntu:20.04:LTS
prometheus

Package

Name
prometheus
Purl
pkg:deb/ubuntu/prometheus?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.7.1+ds-3
2.15.2+ds-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "prometheus",
            "binary_version": "2.15.2+ds-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44903.json"
Ubuntu:25.10
prometheus

Package

Name
prometheus
Purl
pkg:deb/ubuntu/prometheus?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.53.3+ds1-1
2.53.3+ds1-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-prometheus-prometheus-dev",
            "binary_version": "2.53.3+ds1-2"
        },
        {
            "binary_name": "prometheus",
            "binary_version": "2.53.3+ds1-2"
        },
        {
            "binary_version": "2.53.3+ds1-2",
            "binary_name": "promtool"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44903.json"
Ubuntu:26.04:LTS
prometheus

Package

Name
prometheus
Purl
pkg:deb/ubuntu/prometheus?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.53.3+ds1-2
2.53.5+ds1-2
2.53.5+ds1-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-prometheus-prometheus-dev",
            "binary_version": "2.53.5+ds1-3"
        },
        {
            "binary_name": "prometheus",
            "binary_version": "2.53.5+ds1-3"
        },
        {
            "binary_name": "promtool",
            "binary_version": "2.53.5+ds1-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44903.json"
Ubuntu:Pro:22.04:LTS
prometheus

Package

Name
prometheus
Purl
pkg:deb/ubuntu/prometheus?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.24.1+ds-1ubuntu1
2.24.1+ds-1ubuntu2
2.31.1+ds2-2
2.31.2+ds1-1
2.31.2+ds1-1ubuntu1
2.31.2+ds1-1ubuntu1.22.04.1
2.31.2+ds1-1ubuntu1.22.04.2
2.31.2+ds1-1ubuntu1.22.04.3
2.31.2+ds1-1ubuntu1.22.04.3+esm1
2.31.2+ds1-1ubuntu1.22.04.3+esm2
2.31.2+ds1-1ubuntu1.22.04.3+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "prometheus",
            "binary_version": "2.31.2+ds1-1ubuntu1.22.04.3+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44903.json"
Ubuntu:Pro:24.04:LTS
prometheus

Package

Name
prometheus
Purl
pkg:deb/ubuntu/prometheus?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.45.0+ds-3build1
2.45.1+ds-1
2.45.1+ds-2
2.45.1+ds-3
2.45.3+ds-2
2.45.3+ds-2build1
2.45.3+ds-2ubuntu0.1
2.45.3+ds-2ubuntu0.2
2.45.3+ds-2ubuntu0.2+esm1
2.45.3+ds-2ubuntu0.2+esm2
2.45.3+ds-2ubuntu0.3
2.45.3+ds-2ubuntu0.3+esm1
2.45.3+ds-2ubuntu0.3+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "prometheus",
            "binary_version": "2.45.3+ds-2ubuntu0.3+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44903.json"