{"id":"OESA-2026-1259","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.\r\n\r\nSecurity Fix(es):\n\npyasn1 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)","modified":"2026-01-30T13:00:15.150813Z","published":"2026-01-30T12:28:06Z","upstream":["CVE-2026-23490"],"database_specific":{"severity":"High"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1259"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23490"}],"affected":[{"package":{"name":"python-pyasn1","ecosystem":"openEuler:24.03-LTS-SP3","purl":"pkg:rpm/openEuler/python-pyasn1&distro=openEuler-24.03-LTS-SP3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.1-2.oe2403sp3"}]}],"ecosystem_specific":{"noarch":["python-pyasn1-help-0.5.1-2.oe2403sp3.noarch.rpm","python3-pyasn1-0.5.1-2.oe2403sp3.noarch.rpm"],"src":["python-pyasn1-0.5.1-2.oe2403sp3.src.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-1259.json"}}],"schema_version":"1.7.3"}