{"id":19816,"date":"2026-09-09T08:31:26","date_gmt":"2026-09-09T00:31:26","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-53938"},"modified":"2026-09-09T08:31:26","modified_gmt":"2026-09-09T00:31:26","slug":"cve-2026-53938","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-53938","title":{"rendered":"CVE-2026-53938 [HIGH] &#8211; OpenIDC\/cjose is a C library implementing the Javascript Object Signing and Encryption (JO"},"content":{"rendered":"<p>OpenIDC\/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). Prior to version 0.6.2.5, cjose&#8217;s JWE decryption path for the AES Key Wrap key-management algorithms (`alg` = `A128KW`, `A192KW`, `A256KW`) does not validate the length of the attacker-supplied `encrypted_key` (JWE Encrypted Key) before unwrapping it into a fixed-size, heap-allocated Content Encryption Key (CEK) buffer. A remote, unauthenticated attacker who can submit a crafted JWE to an application that decrypts it with an AES-KW symmetric key can trigger an out-of-bounds heap write, corrupting the heap. This leads at minimum to a crash (denial of service) and, depending on the heap layout and allocator, may be leverageable for further memory-corruption impact. `cjose_jwe_import()` \/ `cjose_jwe_decrypt()` are pre-authentication entry points: they parse and process fully attacker-controlled input. Upgrade to cjose 0.6.2.5 to receive a patch. If upgrading is not immediately possible, reject the AES Key Wrap algorithms (`A128KW`\/`A192KW`\/`A256KW`) for untrusted JWEs at the application layer.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>OpenIDC\/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). Prior to version 0.6.2.5, cjose&#8217;s JWE decryption path for the AES Key Wrap key-management algorithms (`al<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-19816","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/19816","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19816"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19816"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19816"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}