Cross-site Scripting (XSS) Affecting opentelemetry-collector package, versions <0.152.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-OPENTELEMETRYCOLLECTOR-16697090
  • published15 May 2026
  • disclosed26 May 2026

Introduced: 15 May 2026

NewCVE-2026-44903  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Minimos:latest opentelemetry-collector to version 0.152.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream opentelemetry-collector package and not the opentelemetry-collector package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1