How severe is CVE-2019-19324?

CVE-2019-19324 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-2019-19324 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19324?

CVE-2019-19324 affects Xmidt Cjwt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19324?

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-2019-19324 published?

CVE-2019-19324 was published on 2020-03-20 and last updated on 2026-06-17.

CVE-2019-19324

CVE-2019-19324 is a high-severity vulnerability in Xmidt Cjwt 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-670.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-670
Affected product: Xmidt Cjwt
Published: 2020-03-20
Last modified: 2026-06-17

Description

Xmidt cjwt through 1.0.1 before 2019-11-25 maps unsupported algorithms to alg=none, which sometimes leads to untrusted accidental JWT acceptance.

Frequently asked questions

What is CVE-2019-19324?: Xmidt cjwt through 1.0.1 before 2019-11-25 maps unsupported algorithms to alg=none, which sometimes leads to untrusted accidental JWT acceptance.
How severe is CVE-2019-19324?: CVE-2019-19324 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-2019-19324 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19324?: CVE-2019-19324 affects Xmidt Cjwt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19324?: 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-2019-19324 published?: CVE-2019-19324 was published on 2020-03-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:xmidt:cjwt:*:*:*:*:*:*:*:*

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