CVE-2026-34986

A flaw was found in Go JOSE, a library for handling JSON Web Encryption (JWE) objects. A remote attacker could exploit this vulnerability by providing a specially crafted JWE object. When decrypting such an object, if a key wrapping algorithm is specified but the encrypted key field is empty, the application can crash. This leads to a denial of service (DoS), making the affected service unavailable to legitimate users.

This Important impact denial of service vulnerability in the Go JOSE library can be triggered by a crafted JSON Web Encryption (JWE) object specifying a key wrapping algorithm with an empty encrypted_key field, causing a panic and application crash. Applications that parse and decrypt JWE objects from untrusted sources are affected.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.