How severe is CVE-2023-31582?

CVE-2023-31582 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-31582 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31582?

CVE-2023-31582 affects Jose4j Project Jose4j. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-31582?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-31582 published?

CVE-2023-31582 was published on 2023-10-25 and last updated on 2026-06-17.

CVE-2023-31582

CVE-2023-31582 is a high-severity vulnerability in Jose4j Project Jose4j with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-331.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-331
Affected product: Jose4j Project Jose4j
Published: 2023-10-25
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2023-31582?: jose4j before v0.9.3 allows attackers to set a low iteration count of 1000 or less.
How severe is CVE-2023-31582?: CVE-2023-31582 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-31582 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-31582?: CVE-2023-31582 affects Jose4j Project Jose4j. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-31582?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-31582 published?: CVE-2023-31582 was published on 2023-10-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jose4j_project:jose4j:*:*:*:*:*:*:*:*

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