CVE-2023-31582: Jose4j project jose4j vulnerability

JJose4j Project · Jose4j

jose4j before v0.9.3 allows attackers to set a low iteration count of 1000 or less.

7.5 CVSS 3.1 High EPSS 0.64% · top 51.5% CWE-331 · CWE-331

7.5CVSS 3.1 base score

0.64%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References

17 Jun 2026Last modified by NVD

Description

jose4j before v0.9.3 allows attackers to set a low iteration count of 1000 or less.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

JJose4j Jose4j Project

References

Link	Tags
https://bitbucket.org/b_c/jose4j/issues/203/insecure-support-of-setting-pbe-less-then	Issue Tracking
https://github.com/KANIXB/JWTIssues/blob/main/jose4j%20issue.md	Third Party Advisory
https://bitbucket.org/b_c/jose4j/issues/203/insecure-support-of-setting-pbe-less-then	Issue Tracking
https://github.com/KANIXB/JWTIssues/blob/main/jose4j%20issue.md	Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2024-29371Jose4j project jose4j vulnerabilityIn jose4j before 0.9.6, an attacker can cause a Denial-of-Service (DoS) condition by crafting a malicious JSON Web Encryption (JWE) token with an exc…EPSS 0.26%17 Dec 2025 6.5CVE-2023-51775Jose4j project jose4j uncontrolled resource consumption vulnerabilityThe jose4j component before 0.9.4 for Java allows attackers to cause a denial of service (CPU consumption) via a large p2c (aka PBES2 Count) value.EPSS 0.87%29 Feb 2024

Source: NIST National Vulnerability Database (record CVE-2023-31582), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.