Inefficient Algorithmic Complexity Affecting pyasn1 package, versions [,0.6.4)
Threat Intelligence
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-PYTHON-PYASN1-17972380
- published14 Jul 2026
- disclosed14 Jul 2026
- credittynus2
Introduced: 14 Jul 2026
NewCVE-2026-59885 (opens in a new tab)How to fix?
Upgrade pyasn1 to version 0.6.4 or higher.
Overview
Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity via the decode process. An attacker can cause excessive CPU consumption and disrupt service availability by submitting specially crafted ASN.1 data containing OBJECT IDENTIFIER or RELATIVE-OID values with a large number of arcs.