Inefficient Regular Expression Complexity Affecting renovate package, versions <43.3.1-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.02% (5th percentile)

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  • Snyk IDSNYK-WOLFILATEST-RENOVATE-15413601
  • published5 Mar 2026
  • disclosed4 Feb 2026

Introduced: 4 Feb 2026

CVE-2026-25547  (opens in a new tab)
CWE-1333  (opens in a new tab)

How to fix?

Upgrade Wolfi renovate to version 43.3.1-r0 or higher.

NVD Description

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

@isaacs/brace-expansion is a hybrid CJS/ESM TypeScript fork of brace-expansion. Prior to version 5.0.1, @isaacs/brace-expansion is vulnerable to a denial of service (DoS) issue caused by unbounded brace range expansion. When an attacker provides a pattern containing repeated numeric brace ranges, the library attempts to eagerly generate every possible combination synchronously. Because the expansion grows exponentially, even a small input can consume excessive CPU and memory and may crash the Node.js process. This issue has been patched in version 5.0.1.

CVSS Base Scores

version 3.1