Cross-site Scripting (XSS) Affecting cilium-cli package, versions <0.19.2-r11
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-WOLFILATEST-CILIUMCLI-16639611
- published11 May 2026
- disclosed7 May 2026
Introduced: 7 May 2026
NewCVE-2026-39823 (opens in a new tab)How to fix?
Upgrade Wolfi cilium-cli to version 0.19.2-r11 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream cilium-cli package and not the cilium-cli package as distributed by Wolfi.
See How to fix? for Wolfi relevant fixed versions and status.
CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a <meta> tag's <content> attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of the <content> attribute, the escaper would fail to similarly escape it, leading to XSS.