Detections
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SCA: security update for github.com/prometheus/prometheus (GHSA-vffh-x6r8-xx99)

medium Tenable Self-Hosted Container Security Plugin ID 440929

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. Versions 3.0 through 3.5.1 and
 3.6.0 through 3.11.1 have stored cross-site scripting vulnerabilities in multiple components of the
 Prometheus web UI where metric names and label values are injected into innerHTML without escaping. In
 both the Mantine UI and old React UI, chart tooltips on the Graph page render metric names containing
 HTML/JavaScript without sanitization. In the old React UI, the Metric Explorer fuzzy search results use
 dangerouslySetInnerHTML without escaping, and heatmap cell tooltips interpolate le label values without
 sanitization. With Prometheus v3.x defaulting to UTF-8 metric and label name validation, characters like
 <, >, and " are now valid in metric names and labels. An attacker who can inject metrics via a compromised
 scrape target, remote write, or OTLP receiver endpoint can execute arbitrary JavaScript in the browser of
 any Prometheus user who views the metric in the Graph UI, potentially enabling configuration exfiltration,
 data deletion, or Prometheus shutdown depending on enabled flags. This issue has been fixed in versions
 3.5.2 and 3.11.2. If developers are unable to immediately update, the following workarounds are
 recommended: ensure that the remote write receiver (--web.enable-remote-write-receiver) and the OTLP
 receiver (--web.enable-otlp-receiver) are not exposed to untrusted sources; verify that all scrape targets
 are trusted and not under attacker control; avoid enabling admin or mutating API endpoints (e.g.,
 --web.enable-admin-api or --web.enable-lifecycle) in environments where untrusted data may be ingested;
 and refrain from clicking untrusted links, particularly those containing functions such as label_replace,
 as they may generate poisoned label names and values. (CVE-2026-40179)

Solution

Update the github.com/prometheus/prometheus library and its related packages to version 0.311.2-0.20260410083055-07c6232d159b or later.

See Also

https://github.com/advisories/GHSA-vffh-x6r8-xx99

Plugin Details

Severity: Medium

ID: 440929

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 4/27/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.57

Vendor

Vendor Severity: Medium

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-2026-40179

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: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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: 4/13/2026

Vulnerability Publication Date: 4/13/2026

Reference Information

CVE: CVE-2026-40179

cwe: CWE-79