How severe is CVE-2018-1000056?

CVE-2018-1000056 has a CVSS 3.x base score of 8.3, 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 low, and availability high.

Is CVE-2018-1000056 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000056?

CVE-2018-1000056 affects Jenkins Junit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1000056?

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-2018-1000056 published?

CVE-2018-1000056 was published on 2018-02-09 and last updated on 2026-06-17.

CVE-2018-1000056

CVE-2018-1000056 is a high-severity vulnerability in Jenkins Junit with a CVSS 3.x base score of 8.3. 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-611.

Key facts

Severity: High (CVSS 3.x base score 8.3)
CVSS v2: 6.5
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Jenkins Junit
Published: 2018-02-09
Last modified: 2026-06-17

Description

Jenkins JUnit Plugin 1.23 and earlier processes XML external entities in files it parses as part of the build process, allowing attackers with user permissions in Jenkins to extract secrets from the Jenkins master, perform server-side request forgery, or denial-of-service attacks.

Frequently asked questions

What is CVE-2018-1000056?: Jenkins JUnit Plugin 1.23 and earlier processes XML external entities in files it parses as part of the build process, allowing attackers with user permissions in Jenkins to extract secrets from the Jenkins master, perform server-side request forgery, or denial-of-service attacks.
How severe is CVE-2018-1000056?: CVE-2018-1000056 has a CVSS 3.x base score of 8.3, 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 low, and availability high.
Is CVE-2018-1000056 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000056?: CVE-2018-1000056 affects Jenkins Junit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1000056?: 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-2018-1000056 published?: CVE-2018-1000056 was published on 2018-02-09 and last updated on 2026-06-17.

References

https://jenkins.io/security/advisory/2018-02-05/

Affected products (1)

cpe:2.3:a:jenkins:junit:*:*:*:*:*:jenkins:*:*

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