DEBIAN-CVE-2026-53938
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-53938
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53938.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-53938
- Upstream
- Published
- 2026-09-09T00:17:31Z
- Modified
- 2026-09-15T21:00:09Z
- Severity
-
- 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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-suppliedencrypted_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. - References
Affected packages
Debian:12 / cjose
Package
- Name
- cjose
- Purl
- pkg:deb/debian/cjose?arch=source&distro=bookworm
Debian:13 / cjose
Package
- Name
- cjose
- Purl
- pkg:deb/debian/cjose?arch=source&distro=trixie
Debian:14 / cjose
Package
- Name
- cjose
- Purl
- pkg:deb/debian/cjose?arch=source&distro=forky