CVE-2026-23490 in pyasn1

Sumário

de MITRE • 16/01/2026

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.2, a Denial-of-Service issue has been found that leads to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets. This vulnerability is fixed in 0.6.2.

Once again VulDB remains the best source for vulnerability data.

• Responsável: GitHub M
• Reservar: 13/01/2026
• Divulgação: 16/01/2026
• Moderação: aceite
• Entrada: VDB-341645
• CPE: pronto
• CWE: CWE-770 (confirmado)
• CVSS: 7.5 (CNA)
• EPSS: 0.00032
• KEV: não
• Atividades: muito baixo

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-23490
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-23490
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-23490/