Use of Weak Hash Affecting stedolan/jq package, versions [,1.8.2-rc1)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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Test your applications- Snyk IDSNYK-UNMANAGED-STEDOLANJQ-16305523
- published27 Apr 2026
- disclosed14 Apr 2026
- creditAsafMeizner
Introduced: 14 Apr 2026
CVE-2026-40164 (opens in a new tab)How to fix?
Upgrade stedolan/jq to version 1.8.2-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Use of Weak Hash in the MurmurHash3 process. An attacker can cause significant CPU exhaustion by supplying a crafted JSON object with keys that all hash to the same bucket, resulting in degraded hash table performance and increased processing time.