Python CVE-2026-23490
HIGH
GHSA-63vm-454h-vhhq
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
3Blast Radius
ecosystem impact- 147 pypi packages depend on pyasn1 (127 direct, 20 indirect)
Ecosystem-wide dependent count for version 0.6.1.
DescriptionNVD
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.
AnalysisAI
pyasn1 is a generic ASN.1 library for Python. versions up to 0.6.2 is affected by allocation of resources without limits or throttling (CVSS 7.5).
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RemediationAI
Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.
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External POC / Exploit Code
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