Algorithmic Complexity Affecting renovate package, versions <44.11.4-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.34% (28th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-RENOVATE-18806084
  • published15 Aug 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

NewCVE-2026-73643  (opens in a new tab)
CWE-407  (opens in a new tab)

How to fix?

Upgrade Chainguard renovate to version 44.11.4-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 Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 until 5.2.2, parsing a small YAML document can take exponential time when an application calls load() or loadAll() on untrusted input. In src/parser/parser.ts, readFlowCollection uses restoreState and calls parseNode a second time when a flow-sequence entry is recognized as a key: value pair. If the key is a nested flow sequence of the same shape, every level is parsed twice, causing O(2^n) work and allowing an input under 200 bytes to keep one CPU busy for minutes, block the Node.js event loop, and stall the process. No anchors, aliases, merges, tags, or nondefault options are required. This issue is fixed in version 5.2.2.

CVSS Base Scores

version 3.1