## CVE-2026-23490: pyasn1 Library Vulnerability Triggers High-Severity DevSecOps Alert for Memory Exhaustion
A high-severity vulnerability in the widely-used Python library pyasn1 has triggered an automated DevSecOps alert, exposing projects to potential denial-of-service attacks. The flaw, tracked as CVE-2026-23490, stems from a memory exhaustion issue that can be exploited by feeding the library a malformed RELATIVE-OID with excessive continuation octets. This allows an attacker to crash or severely degrade the performance of any application dependent on the vulnerable versions of pyasn1, a generic ASN.1 toolkit essential for encoding and decoding data in protocols like SNMP, LDAP, and cryptography.

The alert was generated automatically by the Trivy Software Composition Analysis (SCA) scanner within a CI/CD pipeline, pinpointing the vulnerable dependency in a project's `requirements.txt` file. The specific workflow run for the repository `josemaMG/PAI4` confirms the active detection. The vulnerability affects all versions of pyasn1 prior to 0.6.2, making any project that hasn't updated its dependencies potentially susceptible to this resource exhaustion attack.

The immediate and critical recommendation is to upgrade the pyasn1 dependency to the patched version 0.6.2. This incident underscores the critical role of automated security tooling in modern software development. It highlights the persistent risk posed by transitive dependencies in open-source software and the necessity for continuous monitoring and patching within DevSecOps workflows to prevent such high-severity flaws from reaching production environments.
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- **Source**: GitHub Issues
- **Sector**: The Lab
- **Tags**: CVE-2026-23490, DevSecOps, Python Security, SCA, Trivy
- **Credibility**: unverified
- **Published**: 2026-04-14 12:22:47
- **ID**: 63721
- **URL**: https://whisperx.ai/en/intel/63721