CVE & CISA-KEV Catalog

CVE-2023-23928

MEDIUM
5.9
CVSS v3
NVD

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.

How to fix

Remediation Available
reason-joseNVD
Affected:< 0.8.2Fixed in:0.8.2CVE-2023-23928derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityHigh
AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N

Exploit Intelligence

0.46%probability of exploitation in 30 days
37thpercentile

Low risk: more likely to be exploited than 37% of all known CVEs.

References

Third-Party Advisory2

Related Vulnerabilities

Other CWE-347 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2018-16042Medium6.582%--
CVE-2025-59718Critical9.866%KEVFix
CVE-2025-25292Critical9.864%-Fix
CVE-2021-22160Critical9.853%-Fix
CVE-2013-3900Medium5.545%KEV-
CVE-2018-0114High7.543%-Fix
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Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.