Is CVE-2026-53442 in the CISA KEV catalog?

No. CVE-2026-53442 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-53442?

CVE-2026-53442 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2026-53442?

CVE-2026-53442 has an EPSS score of 0.19% (9th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-53442?

Upgrade jenkins to 2.555.3 or later.

CVE & CISA-KEV Catalog

CVE-2026-53442

MEDIUM

5.3

CVSS v3

NVD

Description

Jenkins 2.567 and earlier, LTS 2.555.2 and earlier does not encrypt secrets from POST config.xml submissions before storing them in job configurations unencrypted in job config.xml files on the Jenkins controller where they can be viewed by users with Item/Extended Read permission, or access to the Jenkins controller file system.

CWE-311

How to fix

Remediation Available

jenkinsNVD

Affected:< 2.555.3Fixed in:2.555.3CVE-2026-53442derived from NVD

Affected:< 2.568Fixed in:2.568CVE-2026-53442derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.19%probability of exploitation in 30 days

9thpercentile

Low risk: more likely to be exploited than 9% of all known CVEs.

References

Vendor Advisory1

jenkins.io

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-12.