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CVE-2026-23490
Published: Jan 16, 2026
Modified: Feb 1, 2026
PUBLISHED
CVSS v3.1
7.5
HIGH
Description
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.
| Vendor | Product | Versions |
|---|---|---|
pyasn1 | pyasn1 | affected < 0.6.2 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
References
https://github.com/pyasn1/pyasn1/security/advisories/GHSA-63vm-454h-vhhq
x_refsource_CONFIRM
https://github.com/pyasn1/pyasn1/releases/tag/v0.6.2
x_refsource_MISC
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