Vulnerability Details CVE-2026-23490
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 9.6%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-23490
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cpe:2.3:a:pyasn1:pyasn1:0.2.1
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cpe:2.3:a:pyasn1:pyasn1:0.2.2
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cpe:2.3:a:pyasn1:pyasn1:0.2.3
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cpe:2.3:a:pyasn1:pyasn1:0.3.1
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cpe:2.3:a:pyasn1:pyasn1:0.3.2
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cpe:2.3:a:pyasn1:pyasn1:0.3.3
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cpe:2.3:a:pyasn1:pyasn1:0.3.4
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cpe:2.3:a:pyasn1:pyasn1:0.3.5
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cpe:2.3:a:pyasn1:pyasn1:0.3.6
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cpe:2.3:a:pyasn1:pyasn1:0.3.7
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cpe:2.3:a:pyasn1:pyasn1:0.4.1
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cpe:2.3:a:pyasn1:pyasn1:0.4.2
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cpe:2.3:a:pyasn1:pyasn1:0.4.3
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cpe:2.3:a:pyasn1:pyasn1:0.4.4
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cpe:2.3:a:pyasn1:pyasn1:0.4.5
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cpe:2.3:a:pyasn1:pyasn1:0.4.6
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cpe:2.3:a:pyasn1:pyasn1:0.4.7
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cpe:2.3:a:pyasn1:pyasn1:0.4.8
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cpe:2.3:a:pyasn1:pyasn1:0.5.0
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cpe:2.3:a:pyasn1:pyasn1:0.5.1
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cpe:2.3:a:pyasn1:pyasn1:0.6.0
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cpe:2.3:a:pyasn1:pyasn1:0.6.1
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cpe:2.3:o:debian:debian_linux:11.0