How severe is CVE-2024-33531?

CVE-2024-33531 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2024-33531 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-33531?

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.

Does CVE-2024-33531 have an EU (EUVD) identifier?

Yes. CVE-2024-33531 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-31268.

When was CVE-2024-33531 published?

CVE-2024-33531 was published on 2024-04-24 and last updated on 2026-06-17.

CVE-2024-33531

CVE-2024-33531 is a high-severity vulnerability with a CVSS 3.x base score of 8.1. 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-290.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-31268
Weakness: CWE-290
Published: 2024-04-24
Last modified: 2026-06-17

Description

cdbattags lua-resty-jwt 0.2.3 allows attackers to bypass all JWT-parsing signature checks by crafting a JWT with an enc header with the value A256GCM.

Frequently asked questions

What is CVE-2024-33531?: cdbattags lua-resty-jwt 0.2.3 allows attackers to bypass all JWT-parsing signature checks by crafting a JWT with an enc header with the value A256GCM.
How severe is CVE-2024-33531?: CVE-2024-33531 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2024-33531 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-33531?: 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.
Does CVE-2024-33531 have an EU (EUVD) identifier?: Yes. CVE-2024-33531 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-31268.
When was CVE-2024-33531 published?: CVE-2024-33531 was published on 2024-04-24 and last updated on 2026-06-17.

References

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