NULL Pointer Dereference Affecting libjwt package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published31 Mar 2026
- disclosed27 Mar 2026
- creditAkshayJainG
Introduced: 27 Mar 2026
NewCVE-2026-33996 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference in the jwk2key process. An attacker can cause unexpected behavior or application crashes by providing a specially crafted JWK file containing integers where JSON string values are expected.
Workaround
This vulnerability can be mitigated by avoiding the import of keys from untrusted sources and using the jwk2key tool to validate JWK files before use.