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CVE-2023-23928 Details

Description

reason-jose is a JOSE implementation in ReasonML and OCaml.`Jose.Jws.validate` does not check HS256 signatures. This allows tampering of JWS header and payload data if the service does not perform additional checks. Such tampering could expose applications using reason-jose to authorization bypass. Applications relying on JWS claims assertion to enforce security boundaries may be vulnerable to privilege escalation. This issue has been patched in version 0.8.2.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/ulrikstrid/reason-jose/commit/36cd724db3cbec121757624da49072386bd869e5	CVE	PatchThird Party Advisory
https://github.com/ulrikstrid/reason-jose/releases/tag/v0.8.2	CVE	Release NotesThird Party Advisory
https://github.com/ulrikstrid/reason-jose/security/advisories/GHSA-7jj9-6qwv-wpm7	CVE	Third Party Advisory
https://github.com/ulrikstrid/reason-jose/commit/36cd724db3cbec121757624da49072386bd869e5	[email protected]	PatchThird Party Advisory
https://github.com/ulrikstrid/reason-jose/releases/tag/v0.8.2	[email protected]	Release NotesThird Party Advisory
https://github.com/ulrikstrid/reason-jose/security/advisories/GHSA-7jj9-6qwv-wpm7	[email protected]	Third Party Advisory

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-347	Improper Verification of Cryptographic Signature	[email protected]

Affected Products

Product	Versions
reason-jose project reason-jose	< 0.8.2
CPE cpe:2.3:a:reason-jose_project:reason-jose:::::::: Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 8, 2023	Initial Analysis	[email protected]