Cross-site Scripting (XSS) Affecting keep package, versions <0.51.0-r7


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.21% (11th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-KEEP-16698197
  • published15 May 2026
  • disclosed13 May 2026

Introduced: 13 May 2026

CVE-2026-44580  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Chainguard keep to version 0.51.0-r7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream keep package and not the keep package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Next.js is a React framework for building full-stack web applications. From 13.0.0 to before 15.5.16 and 16.2.5, applications that use beforeInteractive scripts together with untrusted content can be vulnerable to cross-site scripting. In affected versions, serialized script content was not escaped safely before being embedded into the document, which could allow attacker-controlled input to break out of the intended script context and execute arbitrary JavaScript in a visitor's browser. This vulnerability is fixed in 15.5.16 and 16.2.5.

CVSS Base Scores

version 3.1