CVE-2026-23490: fallo de gravedad alta en pyasn1
pyasn1 has a DoS vulnerability in decoder
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 0.8%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Productos afectados
pyasn1 · pyasn1CVEs relacionadas — pyasn1
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-30922HIGHpyasn1 Vulnerable to Denial of Service via Unbounded RecursionEPSS 0.8%CVE-2026-59884HIGHpyasn1 BER/CER/DER decoder denial of service via unbounded long-form tag IDsEPSS 0.6%CVE-2026-59885HIGHpyasn1: Quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of serviceEPSS 0.6%CVE-2026-119195HIGHpyasn1: Quadratic-time denial of service in constructed string and indefinite-length ANY decodingEPSS 0.5%CVE-2026-59886HIGHpyasn1: Uncontrolled resource consumption when converting decoded REAL valuesEPSS 0.4%CVE-2026-119197HIGHpyasn1: Quadratic-complexity denial of service in binary REAL decodingEPSS 0.4%
Referencias
https://access.redhat.com/errata/RHSA-2026:13508https://access.redhat.com/errata/RHSA-2026:13512https://access.redhat.com/errata/RHSA-2026:13545https://access.redhat.com/errata/RHSA-2026:13553https://access.redhat.com/errata/RHSA-2026:14020https://access.redhat.com/errata/RHSA-2026:17446https://access.redhat.com/errata/RHSA-2026:17595https://access.redhat.com/errata/RHSA-2026:17611https://access.redhat.com/errata/RHSA-2026:1903https://access.redhat.com/errata/RHSA-2026:1904https://access.redhat.com/errata/RHSA-2026:1905https://access.redhat.com/errata/RHSA-2026:1906