{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"moderate"},"category":"csaf_security_advisory","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"python311-joserfc-1.6.3-1.1 on GA media","title":"Title of the patch"},{"category":"description","text":"These are all security issues fixed in the python311-joserfc-1.6.3-1.1 package on the GA media of openSUSE Tumbleweed.","title":"Description of the patch"},{"category":"details","text":"openSUSE-Tumbleweed-2026-10293","title":"Patchnames"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"SUSE ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"self","summary":"URL of this CSAF notice","url":"https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10293-1.json"},{"category":"self","summary":"SUSE CVE CVE-2026-27932 page","url":"https://www.suse.com/security/cve/CVE-2026-27932/"}],"title":"python311-joserfc-1.6.3-1.1 on GA media","tracking":{"current_release_date":"2026-03-05T00:00:00Z","generator":{"date":"2026-03-05T00:00:00Z","engine":{"name":"cve-database.git:bin/generate-csaf.pl","version":"1"}},"id":"openSUSE-SU-2026:10293-1","initial_release_date":"2026-03-05T00:00:00Z","revision_history":[{"date":"2026-03-05T00:00:00Z","number":"1","summary":"Current version"}],"status":"final","version":"1"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_version","name":"python311-joserfc-1.6.3-1.1.aarch64","product":{"name":"python311-joserfc-1.6.3-1.1.aarch64","product_id":"python311-joserfc-1.6.3-1.1.aarch64"}},{"category":"product_version","name":"python313-joserfc-1.6.3-1.1.aarch64","product":{"name":"python313-joserfc-1.6.3-1.1.aarch64","product_id":"python313-joserfc-1.6.3-1.1.aarch64"}}],"category":"architecture","name":"aarch64"},{"branches":[{"category":"product_version","name":"python311-joserfc-1.6.3-1.1.ppc64le","product":{"name":"python311-joserfc-1.6.3-1.1.ppc64le","product_id":"python311-joserfc-1.6.3-1.1.ppc64le"}},{"category":"product_version","name":"python313-joserfc-1.6.3-1.1.ppc64le","product":{"name":"python313-joserfc-1.6.3-1.1.ppc64le","product_id":"python313-joserfc-1.6.3-1.1.ppc64le"}}],"category":"architecture","name":"ppc64le"},{"branches":[{"category":"product_version","name":"python311-joserfc-1.6.3-1.1.s390x","product":{"name":"python311-joserfc-1.6.3-1.1.s390x","product_id":"python311-joserfc-1.6.3-1.1.s390x"}},{"category":"product_version","name":"python313-joserfc-1.6.3-1.1.s390x","product":{"name":"python313-joserfc-1.6.3-1.1.s390x","product_id":"python313-joserfc-1.6.3-1.1.s390x"}}],"category":"architecture","name":"s390x"},{"branches":[{"category":"product_version","name":"python311-joserfc-1.6.3-1.1.x86_64","product":{"name":"python311-joserfc-1.6.3-1.1.x86_64","product_id":"python311-joserfc-1.6.3-1.1.x86_64"}},{"category":"product_version","name":"python313-joserfc-1.6.3-1.1.x86_64","product":{"name":"python313-joserfc-1.6.3-1.1.x86_64","product_id":"python313-joserfc-1.6.3-1.1.x86_64"}}],"category":"architecture","name":"x86_64"},{"branches":[{"category":"product_name","name":"openSUSE Tumbleweed","product":{"name":"openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed","product_identification_helper":{"cpe":"cpe:/o:opensuse:tumbleweed"}}}],"category":"product_family","name":"SUSE Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"python311-joserfc-1.6.3-1.1.aarch64 as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:python311-joserfc-1.6.3-1.1.aarch64"},"product_reference":"python311-joserfc-1.6.3-1.1.aarch64","relates_to_product_reference":"openSUSE Tumbleweed"},{"category":"default_component_of","full_product_name":{"name":"python311-joserfc-1.6.3-1.1.ppc64le as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:python311-joserfc-1.6.3-1.1.ppc64le"},"product_reference":"python311-joserfc-1.6.3-1.1.ppc64le","relates_to_product_reference":"openSUSE Tumbleweed"},{"category":"default_component_of","full_product_name":{"name":"python311-joserfc-1.6.3-1.1.s390x as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:python311-joserfc-1.6.3-1.1.s390x"},"product_reference":"python311-joserfc-1.6.3-1.1.s390x","relates_to_product_reference":"openSUSE Tumbleweed"},{"category":"default_component_of","full_product_name":{"name":"python311-joserfc-1.6.3-1.1.x86_64 as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:python311-joserfc-1.6.3-1.1.x86_64"},"product_reference":"python311-joserfc-1.6.3-1.1.x86_64","relates_to_product_reference":"openSUSE Tumbleweed"},{"category":"default_component_of","full_product_name":{"name":"python313-joserfc-1.6.3-1.1.aarch64 as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:python313-joserfc-1.6.3-1.1.aarch64"},"product_reference":"python313-joserfc-1.6.3-1.1.aarch64","relates_to_product_reference":"openSUSE Tumbleweed"},{"category":"default_component_of","full_product_name":{"name":"python313-joserfc-1.6.3-1.1.ppc64le as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:python313-joserfc-1.6.3-1.1.ppc64le"},"product_reference":"python313-joserfc-1.6.3-1.1.ppc64le","relates_to_product_reference":"openSUSE Tumbleweed"},{"category":"default_component_of","full_product_name":{"name":"python313-joserfc-1.6.3-1.1.s390x as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:python313-joserfc-1.6.3-1.1.s390x"},"product_reference":"python313-joserfc-1.6.3-1.1.s390x","relates_to_product_reference":"openSUSE Tumbleweed"},{"category":"default_component_of","full_product_name":{"name":"python313-joserfc-1.6.3-1.1.x86_64 as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:python313-joserfc-1.6.3-1.1.x86_64"},"product_reference":"python313-joserfc-1.6.3-1.1.x86_64","relates_to_product_reference":"openSUSE Tumbleweed"}]},"vulnerabilities":[{"cve":"CVE-2026-27932","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2026-27932"}],"notes":[{"category":"general","text":"joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption (JOSE) standards. In 1.6.2 and earlier, a resource exhaustion vulnerability in joserfc allows an unauthenticated attacker to cause a Denial of Service (DoS) via CPU exhaustion. When the library decrypts a JSON Web Encryption (JWE) token using Password-Based Encryption (PBES2) algorithms, it reads the p2c (PBES2 Count) parameter directly from the token's protected header. This parameter defines the number of iterations for the PBKDF2 key derivation function. Because joserfc does not validate or bound this value, an attacker can specify an extremely large iteration count (e.g., 2^31 - 1), forcing the server to expend massive CPU resources processing a single token. This vulnerability exists at the JWA layer and impacts all high-level JWE and JWT decryption interfaces if PBES2 algorithms are allowed by the application's policy.","title":"CVE description"}],"product_status":{"recommended":["openSUSE Tumbleweed:python311-joserfc-1.6.3-1.1.aarch64","openSUSE Tumbleweed:python311-joserfc-1.6.3-1.1.ppc64le","openSUSE Tumbleweed:python311-joserfc-1.6.3-1.1.s390x","openSUSE Tumbleweed:python311-joserfc-1.6.3-1.1.x86_64","openSUSE Tumbleweed:python313-joserfc-1.6.3-1.1.aarch64","openSUSE Tumbleweed:python313-joserfc-1.6.3-1.1.ppc64le","openSUSE Tumbleweed:python313-joserfc-1.6.3-1.1.s390x","openSUSE Tumbleweed:python313-joserfc-1.6.3-1.1.x86_64"]},"references":[{"category":"external","summary":"CVE-2026-27932","url":"https://www.suse.com/security/cve/CVE-2026-27932"},{"category":"external","summary":"SUSE Bug 1259154 for CVE-2026-27932","url":"https://bugzilla.suse.com/1259154"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["openSUSE Tumbleweed:python311-joserfc-1.6.3-1.1.aarch64","openSUSE Tumbleweed:python311-joserfc-1.6.3-1.1.ppc64le","openSUSE Tumbleweed:python311-joserfc-1.6.3-1.1.s390x","openSUSE Tumbleweed:python311-joserfc-1.6.3-1.1.x86_64","openSUSE Tumbleweed:python313-joserfc-1.6.3-1.1.aarch64","openSUSE Tumbleweed:python313-joserfc-1.6.3-1.1.ppc64le","openSUSE Tumbleweed:python313-joserfc-1.6.3-1.1.s390x","openSUSE Tumbleweed:python313-joserfc-1.6.3-1.1.x86_64"]}],"threats":[{"category":"impact","date":"2026-03-05T00:00:00Z","details":"important"}],"title":"CVE-2026-27932"}]}