How severe is CVE-2023-40339?

CVE-2023-40339 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 high, integrity none, and availability none.

Is CVE-2023-40339 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40339?

CVE-2023-40339 affects Jenkins Config File Provider. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40339?

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-2023-40339 published?

CVE-2023-40339 was published on 2023-08-16 and last updated on 2026-06-17.

CVE-2023-40339

CVE-2023-40339 is a high-severity vulnerability in Jenkins Config File Provider 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.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Jenkins Config File Provider
Published: 2023-08-16
Last modified: 2026-06-17

Description

Jenkins Config File Provider Plugin 952.va_544a_6234b_46 and earlier does not mask (i.e., replace with asterisks) credentials specified in configuration files when they're written to the build log.

Frequently asked questions

What is CVE-2023-40339?: Jenkins Config File Provider Plugin 952.va_544a_6234b_46 and earlier does not mask (i.e., replace with asterisks) credentials specified in configuration files when they're written to the build log.
How severe is CVE-2023-40339?: CVE-2023-40339 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 high, integrity none, and availability none.
Is CVE-2023-40339 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40339?: CVE-2023-40339 affects Jenkins Config File Provider. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40339?: 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-2023-40339 published?: CVE-2023-40339 was published on 2023-08-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:config_file_provider:*:*:*:*:*:jenkins:*:*

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