{"id":"CVE-2026-41732","aliases":["GHSA-gg69-9wwp-6jx2"],"url":"https://o3.security/vulnerability/CVE-2026-41732","summary":"In Spring for Apache Pulsar, overly broad trusted-package matching in header mapper exposes JDK classes to deserialization","details":"JsonPulsarHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Additionally, an empty trusted-packages configuration fell back to trusting all packages rather than applying a safe default allow-list.\n\nAffected versions:\nSpring for Apache Pulsar 2.0.0 through 2.0.5; 1.2.0 through 1.2.17; 1.1.0 through 1.1.17.","published":"2026-06-09T23:49:31.164Z","modified":"2026-08-12T17:56:05.259971245Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.springframework.pulsar:spring-pulsar","fixedVersion":"2.0.6"},{"ecosystem":"Maven","name":"org.springframework.pulsar:spring-pulsar","fixedVersion":"1.2.18"},{"ecosystem":"Maven","name":"org.springframework.pulsar:spring-pulsar","fixedVersion":null}],"fix":null,"references":[{"type":"WEB","url":"https://spring.io/security/cve-2026-41732"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41732.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41732"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T17:56:05.259971245Z"}}