OESA-2026-1261

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-1261
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-1261.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-1261
Upstream
Published
2026-01-30T12:28:09Z
Modified
2026-01-30T13:00:15.068305Z
Summary
python-pyasn1 security update
Details

Abstract Syntax Notation One (ASN.1) is a technology for exchanging structured data in a universally understood, hardware agnostic way. Many industrial, security and telephony applications heavily rely on ASN.1. The pyasn1 library implements ASN.1 support in pure-Python.

Security Fix(es):

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.(CVE-2026-23490)

Database specific 
{
    "severity": "High"
}
References

Affected packages

openEuler:24.03-LTS-SP1 / python-pyasn1

Package

Name
python-pyasn1
Purl
pkg:rpm/openEuler/python-pyasn1&distro=openEuler-24.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.5.1-2.oe2403sp1

Ecosystem specific 

{
    "src": [
        "python-pyasn1-0.5.1-2.oe2403sp1.src.rpm"
    ],
    "noarch": [
        "python-pyasn1-help-0.5.1-2.oe2403sp1.noarch.rpm",
        "python3-pyasn1-0.5.1-2.oe2403sp1.noarch.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-1261.json"