{"schema_version":"1.7.2","id":"OESA-2026-1778","modified":"2026-03-27T14:07:55Z","published":"2026-03-27T14:07:55Z","upstream":["CVE-2026-23490"],"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)","affected":[{"package":{"ecosystem":"openEuler:22.03-LTS-SP4","name":"python-pyasn1","purl":"pkg:rpm/openEuler/python-pyasn1&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.8-4.oe2203sp4"}]}],"ecosystem_specific":{"noarch":["python-pyasn1-help-0.4.8-4.oe2203sp4.noarch.rpm","python3-pyasn1-0.4.8-4.oe2203sp4.noarch.rpm"],"src":["python-pyasn1-0.4.8-4.oe2203sp4.src.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1778"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23490"}],"database_specific":{"severity":"High"}}