Detections
Analytics

Echo: github.com/prometheus/prometheus: security update to 0.311.3grafana-12.3-fips: security update to 12.3.11+e4

medium Tenable Self-Hosted Container Security Plugin ID 462767

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-44903)

Solution

Update the github.com/prometheus/prometheus library and its related packages to version 0.311.3 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-44903

Plugin Details

Severity: Medium

ID: 462767

Version: Revision 1.2

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.77

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-44903

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.1

Threat Score: 1.2

Threat Vector: CVSS:4.0/E:U

Vector: 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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/8/2026

Vulnerability Publication Date: 5/5/2026

Reference Information

CVE: CVE-2026-44903