{ "document":{ "aggregate_severity":{ "namespace":"https://nvd.nist.gov/vuln-metrics/cvss", "text":"High" }, "category":"csaf_vex", "csaf_version":"2.0", "distribution":{ "tlp":{ "label":"WHITE", "url":"https:/www.first.org/tlp/" } }, "lang":"en", "notes":[ { "text":"python-pyasn1 security update", "category":"general", "title":"Synopsis" }, { "text":"An update for python-pyasn1 is now available for openEuler-20.03-LTS-SP4", "category":"general", "title":"Summary" }, { "text":"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.\n\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)", "category":"general", "title":"Description" }, { "text":"An update for python-pyasn1 is now available for master/openEuler-20.03-LTS-SP4/openEuler-22.03-LTS-SP3/openEuler-22.03-LTS-SP4/openEuler-24.03-LTS/openEuler-24.03-LTS-Next/openEuler-24.03-LTS-SP1/openEuler-24.03-LTS-SP2/openEuler-24.03-LTS-SP3.\n\nopenEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.", "category":"general", "title":"Topic" }, { "text":"High", "category":"general", "title":"Severity" }, { "text":"python-pyasn1", "category":"general", "title":"Affected Component" } ], "publisher":{ "issuing_authority":"openEuler security committee", "name":"openEuler", "namespace":"https://www.openeuler.org", "contact_details":"openeuler-security@openeuler.org", "category":"vendor" }, "references":[ { "summary":"openEuler-SA-2026-1777", "category":"self", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1777" }, { "summary":"CVE-2026-23490", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-23490&packageName=python-pyasn1" }, { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23490" }, { "summary":"openEuler-SA-2026-1777 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/advisories/2026/csaf-openeuler-sa-2026-1777.json" } ], "title":"An update for python-pyasn1 is now available for openEuler-20.03-LTS-SP4", "tracking":{ "initial_release_date":"2026-03-27T22:10:17+08:00", "revision_history":[ { "date":"2026-03-27T22:10:17+08:00", "summary":"Initial", "number":"1.0.0" } ], "generator":{ "date":"2026-03-27T22:10:17+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2026-03-27T22:10:17+08:00", "id":"openEuler-SA-2026-1777", "version":"1.0.0", "status":"final" } }, "product_tree":{ "branches":[ { "name":"openEuler", "category":"vendor", "branches":[ { "name":"openEuler", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP4" }, "product_id":"openEuler-20.03-LTS-SP4", "name":"openEuler-20.03-LTS-SP4" }, "name":"openEuler-20.03-LTS-SP4", "category":"product_version" } ], "category":"product_name" }, { "name":"src", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP4" }, "product_id":"python-pyasn1-0.4.8-2.oe2003sp4.src.rpm", "name":"python-pyasn1-0.4.8-2.oe2003sp4.src.rpm" }, "name":"python-pyasn1-0.4.8-2.oe2003sp4.src.rpm", "category":"product_version" } ], "category":"architecture" }, { "name":"noarch", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP4" }, "product_id":"python-pyasn1-help-0.4.8-2.oe2003sp4.noarch.rpm", "name":"python-pyasn1-help-0.4.8-2.oe2003sp4.noarch.rpm" }, "name":"python-pyasn1-help-0.4.8-2.oe2003sp4.noarch.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP4" }, "product_id":"python2-pyasn1-0.4.8-2.oe2003sp4.noarch.rpm", "name":"python2-pyasn1-0.4.8-2.oe2003sp4.noarch.rpm" }, "name":"python2-pyasn1-0.4.8-2.oe2003sp4.noarch.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP4" }, "product_id":"python3-pyasn1-0.4.8-2.oe2003sp4.noarch.rpm", "name":"python3-pyasn1-0.4.8-2.oe2003sp4.noarch.rpm" }, "name":"python3-pyasn1-0.4.8-2.oe2003sp4.noarch.rpm", "category":"product_version" } ], "category":"architecture" } ] } ], "relationships":[ { "relates_to_product_reference":"openEuler-20.03-LTS-SP4", "product_reference":"python-pyasn1-0.4.8-2.oe2003sp4.src.rpm", "full_product_name":{ "product_id":"openEuler-20.03-LTS-SP4:python-pyasn1-0.4.8-2.oe2003sp4.src", "name":"python-pyasn1-0.4.8-2.oe2003sp4.src as a component of openEuler-20.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-20.03-LTS-SP4", "product_reference":"python-pyasn1-help-0.4.8-2.oe2003sp4.noarch.rpm", "full_product_name":{ "product_id":"openEuler-20.03-LTS-SP4:python-pyasn1-help-0.4.8-2.oe2003sp4.noarch", "name":"python-pyasn1-help-0.4.8-2.oe2003sp4.noarch as a component of openEuler-20.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-20.03-LTS-SP4", "product_reference":"python2-pyasn1-0.4.8-2.oe2003sp4.noarch.rpm", "full_product_name":{ "product_id":"openEuler-20.03-LTS-SP4:python2-pyasn1-0.4.8-2.oe2003sp4.noarch", "name":"python2-pyasn1-0.4.8-2.oe2003sp4.noarch as a component of openEuler-20.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-20.03-LTS-SP4", "product_reference":"python3-pyasn1-0.4.8-2.oe2003sp4.noarch.rpm", "full_product_name":{ "product_id":"openEuler-20.03-LTS-SP4:python3-pyasn1-0.4.8-2.oe2003sp4.noarch", "name":"python3-pyasn1-0.4.8-2.oe2003sp4.noarch as a component of openEuler-20.03-LTS-SP4" }, "category":"default_component_of" } ] }, "vulnerabilities":[ { "cve":"CVE-2026-23490", "notes":[ { "text":"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.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-20.03-LTS-SP4:python-pyasn1-0.4.8-2.oe2003sp4.src", "openEuler-20.03-LTS-SP4:python-pyasn1-help-0.4.8-2.oe2003sp4.noarch", "openEuler-20.03-LTS-SP4:python2-pyasn1-0.4.8-2.oe2003sp4.noarch", "openEuler-20.03-LTS-SP4:python3-pyasn1-0.4.8-2.oe2003sp4.noarch" ] }, "remediations":[ { "product_ids":{"$ref":"$.vulnerabilities[0].product_status.fixed"}, "details":"python-pyasn1 security update", "category":"vendor_fix", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1777" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"HIGH", "baseScore":7.5, "vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version":"3.1" }, "products":{"$ref":"$.vulnerabilities[0].product_status.fixed"} } ], "threats":[ { "details":"High", "category":"impact" } ], "title":"CVE-2026-23490" } ] }