Inefficient Regular Expression Complexity Affecting rust package, versions <0:1.96.1-1.hum1


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.29% (21st percentile)

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  • Snyk IDSNYK-RHEL10-RUST-17925455
  • published10 Jul 2026
  • disclosed8 Jul 2026

Introduced: 8 Jul 2026

NewCVE-2026-59868  (opens in a new tab)
CWE-1333  (opens in a new tab)

How to fix?

Upgrade RHEL:10 rust to version 0:1.96.1-1.hum1 or higher.
This issue was patched in RHSA-2026:34975.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rust package and not the rust package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 before 5.2.0, when merge keys are enabled, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each mapping merges the previous one. This issue is fixed in version 5.2.0.

CVSS Base Scores

version 3.1