{"id":"CVE-2026-53938","aliases":["ALSA-2026:77369","ALSA-2026:79122","ALSA-2026:90812","AZL-101093","DEBIAN-CVE-2026-53938","EUVD-2026-74298","GHSA-75r7-f5cv-g3wj","MGASA-2026-0496","OESA-2026-4057","RHSA-2026:73017","RHSA-2026:73018","RHSA-2026:73128","RHSA-2026:73129","RHSA-2026:77369","RHSA-2026:77370","RHSA-2026:77371","RHSA-2026:77372","RHSA-2026:79122","RLSA-2026:77369","RLSA-2026:79122","RLSA-2026:90812","SUSE-SU-2026:23910-1","SUSE-SU-2026:4237-1","SUSE-SU-2026:4251-1","SUSE-SU-2026:4253-1","UBUNTU-CVE-2026-53938","openSUSE-SU-2026:11784-1","openSUSE-SU-2026:21944-1"],"status":"published","title":"OpenIDC/cjose has a heap buffer overflow in AES Key Wrap decryption (A128KW/A192KW/A256KW)","description":"OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). Prior to version 0.6.2.5, cjose'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.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00236,"percentile":0.14751,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-122","CWE-787"],"published":"2026-09-08T23:25:30Z","modified":"2026-11-07T18:00:06Z","fixes":[{"ecosystem":"AlmaLinux:10","package":"cjose","fixed_in":["0.6.2.2-7.el10_2.1"],"sources":["osv"]},{"ecosystem":"AlmaLinux:10","package":"cjose-devel","fixed_in":["0.6.2.2-7.el10_2.1"],"sources":["osv"]},{"ecosystem":"AlmaLinux:9","package":"cjose","fixed_in":["0.6.1-17.el9_8.1"],"sources":["osv"]},{"ecosystem":"AlmaLinux:9","package":"cjose-devel","fixed_in":["0.6.1-17.el9_8.1"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"cjose","fixed_in":["0.6.2.1-1+deb12u2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"cjose","fixed_in":["0.6.2.3-1+deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"cjose","fixed_in":["0.6.2.7-1"],"sources":["osv"]},{"ecosystem":"Red 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16.0","package":"cjose","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.2.3-160000.3.1"}]}],"bundled":2}],"products":[{"vendor":"openidc","product":"cjose"}],"references":[{"url":"https://github.com/OpenIDC/cjose/security/advisories/GHSA-75r7-f5cv-g3wj","tags":["x_refsource_CONFIRM","advisory","article"]},{"url":"https://github.com/OpenIDC/cjose/commit/8c51d245273583a658f24ef7b08ba22f848a34a5","tags":["x_refsource_MISC","fix","article"]},{"url":"https://access.redhat.com/errata/RHSA-2026:77369","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-53938","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-54789","tags":["report"]},{"url":"https://bugzilla.redhat.com/2521051","tags":["report"]},{"url":"https://bugzilla.redhat.com/2530240","tags":["report"]},{"url":"https://errata.almalinux.org/8/ALSA-2026-77369.html","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:79122","tags":["advisory"]},{"url":"https://errata.almalinux.org/10/ALSA-2026-79122.html","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:90812","tags":["advisory"]},{"url":"https://errata.almalinux.org/9/ALSA-2026-90812.html","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53938","tags":["web","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53938.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-53938","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2026-0496.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=36320","tags":["report"]},{"url":"https://lists.debian.org/debian-security-announce/2026/msg00410.html","tags":["web"]},{"url":"https://github.com/OpenIDC/cjose/security/advisories/GHSA-f6wf-pqg3-6wqq","tags":["advisory"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/2D6S3Z3ZBW3G2GOAA7DPZOCHKZ67LAUY/","tags":["web"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4057","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53939","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:73017","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2530240","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_73017.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53938","tags":["advisory","report"]},{"url":"https://access.redhat.com/errata/RHSA-2026:73018","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_73018.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:73128","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_73128.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:73129","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_73129.json","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2521051","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_77369.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-54789","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54789","tags":["advisory"]},{"url":"https://github.com/OpenIDC/mod_auth_openidc/commit/8017478471cc071c49aa073c5c9be652a73a8630","tags":["article"]},{"url":"https://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-vgr5-qcpp-x2pr","tags":["article"]},{"url":"https://access.redhat.com/errata/RHSA-2026:77370","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_77370.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:77371","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_77371.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:77372","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_77372.json","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_79122.json","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2026:77369","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2026:79122","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2026:90812","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202623910-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1279844","tags":["report"]},{"url":"https://bugzilla.suse.com/1279846","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-53938","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-53939","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264237-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264251-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264253-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-53938","tags":["report"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-53938","title":"OpenIDC/cjose has a heap buffer overflow in AES Key Wrap decryption (A128KW/A192KW/A256KW)","description":"OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). Prior to version 0.6.2.5, cjose'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.","status":"published","published":"2026-09-08T23:25:30.942Z","modified":"2026-09-09T16:03:38.312Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T14:20:00.11477Z"}],"euvd":[{"id":"EUVD-2026-74298","description":"OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). Prior to version 0.6.2.5, cjose'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.","status":"published","published":"2026-09-08T23:25:30Z","modified":"2026-09-09T16:03:38Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T17:28:26.437971Z"}],"nvd":[{"id":"CVE-2026-53938","description":"OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). Prior to version 0.6.2.5, cjose'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.","status":"published","published":"2026-09-09T00:17:31.557Z","modified":"2026-09-10T19:57:48.533Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T14:12:45.612639Z"}],"osv":[{"id":"CVE-2026-53938","title":"OpenIDC/cjose has a heap buffer overflow in AES Key Wrap decryption (A128KW/A192KW/A256KW)","description":"OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). Prior to version 0.6.2.5, cjose'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.","status":"published","published":"2026-09-08T23:25:30.942Z","modified":"2026-10-29T11:42:23.294649106Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T15:45:08.132336Z"},{"id":"DEBIAN-CVE-2026-53938","description":"OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). Prior to version 0.6.2.5, cjose'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.","status":"published","published":"2026-09-09T00:17:31.557Z","modified":"2026-11-07T18:00:06.956165319Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-07T18:20:56.314708Z"},{"id":"OESA-2026-4057","title":"cjose security update","description":"Implementation of JOSE for C/C++\r\n\r\nSecurity Fix(es):\n\nOpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). Prior to version 0.6.2.5, cjose\u0026apos;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.(CVE-2026-53938)\n\nOpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). In versions 0.6.1 through 0.6.2.5, when cjose encrypts a JWE using an AES-CBC-HMAC content-encryption algorithm (`A128CBC-HS256`, `A192CBC-HS384`, or `A256CBC-HS512`) together with any key-management algorithm that generates a fresh content-encryption key (CEK), the CEK is all zero bytes instead of being randomly generated. The resulting JWE is therefore encrypted and authenticated under a fixed, publicly known key, so anyone who obtains the JWE can recover the plaintext and forge or modify the content. This is fixed in version 0.6.2.6 by `_cjose_jwe_set_cek_aes_cbc()` generating the CEK from `RAND_bytes`. A regression test asserts that the `encrypted_key` differs across two encryptions for each AES-CBC-HMAC variant. Until upgrading, for data encrypted with cjose, three options are available. Use an AES-GCM `enc` (`A128GCM` / `A192GCM` / `A256GCM`) instead of an AES-CBC-HMAC `enc`,  use `alg=dir` with a caller-supplied CEK, or avoid using cjose for JWE encryption with the affected algorithm pair. These are mitigations for new ciphertexts only; data already encrypted under the zero key remains compromised and should be re-encrypted (and any secrets it contained rotated).(CVE-2026-53939)","status":"published","published":"2026-09-25T01:27:46Z","modified":"2026-09-25T01:45:07.895474859Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"RHSA-2026:73017","title":"Red Hat Security Advisory: cjose security update","status":"published","published":"2026-09-30T10:17:46Z","modified":"2026-10-14T10:29:39Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.928316Z"},{"id":"RHSA-2026:73018","title":"Red Hat Security Advisory: cjose security update","status":"published","published":"2026-09-30T10:17:46Z","modified":"2026-10-14T10:29:39Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.928316Z"},{"id":"RHSA-2026:73128","title":"Red Hat Security Advisory: cjose security update","status":"published","published":"2026-09-30T10:17:52Z","modified":"2026-10-14T10:29:41Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.928316Z"},{"id":"RHSA-2026:73129","title":"Red Hat Security Advisory: cjose security update","status":"published","published":"2026-09-30T10:17:52Z","modified":"2026-10-14T10:29:42Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.928316Z"},{"id":"RHSA-2026:77369","title":"Red Hat Security Advisory: mod_auth_openidc:2.3 security update","status":"published","published":"2026-10-08T10:20:18Z","modified":"2026-10-15T10:27:36Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.547034Z"},{"id":"RHSA-2026:77370","title":"Red Hat Security Advisory: mod_auth_openidc:2.3 security update","status":"published","published":"2026-10-07T10:20:22Z","modified":"2026-10-14T10:31:07Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.547034Z"},{"id":"RHSA-2026:77371","title":"Red Hat Security Advisory: mod_auth_openidc:2.3 security update","status":"published","published":"2026-10-07T10:20:22Z","modified":"2026-10-14T10:31:07Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.547034Z"},{"id":"RHSA-2026:77372","title":"Red Hat Security Advisory: mod_auth_openidc:2.3 security update","status":"published","published":"2026-10-07T10:20:23Z","modified":"2026-10-14T10:31:08Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.547034Z"},{"id":"RHSA-2026:79122","title":"Red Hat Security Advisory: cjose security update","status":"published","published":"2026-10-10T10:22:44Z","modified":"2026-10-14T10:31:29Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.547034Z"},{"id":"RLSA-2026:77369","title":"Important: mod_auth_openidc:2.3 security update","description":"The mod_auth_openidc is an OpenID Connect authentication module for Apache HTTP Server. It enables an Apache HTTP Server to operate as an OpenID Connect Relying Party and/or OAuth 2.0 Resource Server. \n\nSecurity Fix(es):\n\n* mod_auth_openidc: mod_auth_openidc: Denial of Service via malformed state cookie parsing (CVE-2026-54789)\n\n* cjose: cjose: Heap buffer overflow in AES Key Wrap decryption leads to denial of service (CVE-2026-53938)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-10-08T06:03:37.805664Z","modified":"2026-10-08T06:45:02.751660331Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.449929Z"},{"id":"RLSA-2026:79122","title":"Important: cjose security update","description":"CJose is C library implementing the Javascript Object Signing and Encryption (JOSE).\n\nSecurity Fix(es):\n\n* cjose: cjose: Heap buffer overflow in AES Key Wrap decryption leads to denial of service (CVE-2026-53938)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-10-10T12:08:29.652489Z","modified":"2026-10-10T12:30:02.791457389Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.449929Z"},{"id":"RLSA-2026:90812","title":"Important: cjose security update","description":"CJose is C library implementing the Javascript Object Signing and Encryption (JOSE).\n\nSecurity Fix(es):\n\n* cjose: cjose: Heap buffer overflow in AES Key Wrap decryption leads to denial of service (CVE-2026-53938)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-10-30T12:04:27.805649Z","modified":"2026-10-30T12:30:02.548675997Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.76659Z"},{"id":"UBUNTU-CVE-2026-53938","description":"OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). Prior to version 0.6.2.5, cjose'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.","status":"published","published":"2026-09-09T00:17:00Z","modified":"2026-10-17T12:59:02.785507196Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:41.382716Z"},{"id":"ALSA-2026:77369","title":"Important: mod_auth_openidc:2.3 security update","description":"The mod_auth_openidc is an OpenID Connect authentication module for Apache HTTP Server. It enables an Apache HTTP Server to operate as an OpenID Connect Relying Party and/or OAuth 2.0 Resource Server.   \n\nSecurity Fix(es):  \n\n  * mod_auth_openidc: mod_auth_openidc: Denial of Service via malformed state cookie parsing (CVE-2026-54789)\n  * cjose: cjose: Heap buffer overflow in AES Key Wrap decryption leads to denial of service (CVE-2026-53938)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-10-07T00:00:00Z","modified":"2026-10-29T11:02:29.605266195Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"ALSA-2026:79122","title":"Important: cjose security update","description":"CJose is C library implementing the Javascript Object Signing and Encryption (JOSE).  \n\nSecurity Fix(es):  \n\n  * cjose: cjose: Heap buffer overflow in AES Key Wrap decryption leads to denial of service (CVE-2026-53938)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-10-08T00:00:00Z","modified":"2026-10-29T11:30:22.697909431Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"ALSA-2026:90812","title":"Important: cjose security update","description":"CJose is C library implementing the Javascript Object Signing and Encryption (JOSE).  \n\nSecurity Fix(es):  \n\n  * cjose: cjose: Heap buffer overflow in AES Key Wrap decryption leads to denial of service (CVE-2026-53938)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-10-27T00:00:00Z","modified":"2026-10-29T11:32:32.918437461Z","updated_at":"2026-11-02T15:27:57.367731Z"},{"id":"AZL-101093","title":"CVE-2026-53938 affecting package cjose 0.6.2.2-7","description":"OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). Prior to version 0.6.2.5, cjose'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.","status":"published","published":"2026-09-09T00:17:31Z","modified":"2026-11-05T05:36:30Z","updated_at":"2026-11-05T16:41:17.128158Z"},{"id":"MGASA-2026-0496","title":"Updated cjose packages fix security vulnerabilities","description":"The updated packages fix security vulnerabilities:\nHeap buffer overflow in AES Key Wrap decryption (A128KW/A192KW/A256KW).\n(CVE-2026-53938)\nAll-zero Content Encryption Key used for AES-CBC-HMAC JWE encryption.\n(CVE-2026-53939)\n","status":"published","published":"2026-10-12T20:48:13Z","modified":"2026-10-12T21:00:03.199222025Z","updated_at":"2026-11-02T15:49:43.795591Z"},{"id":"openSUSE-SU-2026:11784-1","title":"libcjose-devel-0.6.2.8-2.1 on GA media","description":"These are all security issues fixed in the libcjose-devel-0.6.2.8-2.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-09-15T00:00:00Z","modified":"2026-09-16T18:23:08.427100868Z","updated_at":"2026-11-02T16:58:39.516824Z"},{"id":"openSUSE-SU-2026:21944-1","title":"Security update for cjose","description":"This update for cjose fixes the following issues:\n\n- CVE-2026-53938: missing encrypted_key length validation during AES Key Wrap decryption can cause heap-based buffer\n  overflow (bsc#1279844).\n- CVE-2026-53939: zero-filled content-encryption key generation in AES-CBC-HMAC JWE encryption within cjose can allow\n  unauthorized content modification (bsc#1279846).\n","status":"published","published":"2026-09-23T19:43:03Z","modified":"2026-09-25T18:23:14.231396619Z","updated_at":"2026-11-02T16:58:42.426393Z"},{"id":"SUSE-SU-2026:23910-1","title":"Security update for cjose","description":"This update for cjose fixes the following issues:\n\n- CVE-2026-53938: missing encrypted_key length validation during AES Key Wrap decryption can cause heap-based buffer\n  overflow (bsc#1279844).\n- CVE-2026-53939: zero-filled content-encryption key generation in AES-CBC-HMAC JWE encryption within cjose can allow\n  unauthorized content modification (bsc#1279846).\n","status":"published","published":"2026-09-23T19:43:44Z","modified":"2026-09-30T18:23:12.221410101Z","updated_at":"2026-11-02T15:54:03.991985Z"},{"id":"SUSE-SU-2026:4237-1","title":"Security update for cjose","description":"This update for cjose fixes the following issues:\n\n- CVE-2026-53938: missing encrypted_key length validation during AES Key Wrap decryption can cause heap-based buffer\n  overflow (bsc#1279844).\n- CVE-2026-53939: zero-filled content-encryption key generation in AES-CBC-HMAC JWE encryption within cjose can allow\n  unauthorized content modification (bsc#1279846).\n","status":"published","published":"2026-09-17T11:47:13Z","modified":"2026-09-17T18:23:12.733755835Z","updated_at":"2026-11-02T15:54:05.392906Z"},{"id":"SUSE-SU-2026:4251-1","title":"Security update for cjose","description":"This update for cjose fixes the following issues:\n\n- CVE-2026-53938: missing encrypted_key length validation during AES Key Wrap decryption can cause heap-based buffer\n  overflow (bsc#1279844).\n- CVE-2026-53939: zero-filled content-encryption key generation in AES-CBC-HMAC JWE encryption within cjose can allow\n  unauthorized content modification (bsc#1279846).\n","status":"published","published":"2026-09-17T16:01:20Z","modified":"2026-09-18T10:00:05.157410206Z","updated_at":"2026-11-02T15:54:05.392906Z"},{"id":"SUSE-SU-2026:4253-1","title":"Security update for cjose","description":"This update for cjose fixes the following issues:\n\n- CVE-2026-53938: missing encrypted_key length validation during AES Key Wrap decryption can cause heap-based buffer\n  overflow (bsc#1279844).\n- CVE-2026-53939: zero-filled content-encryption key generation in AES-CBC-HMAC JWE encryption within cjose can allow\n  unauthorized content modification (bsc#1279846).  \n","status":"published","published":"2026-09-17T16:02:17Z","modified":"2026-09-18T10:00:04.860828276Z","updated_at":"2026-11-02T15:54:05.392906Z"}]}}