How severe is CVE-2018-1999006?

CVE-2018-1999006 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2018-1999006 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1999006?

CVE-2018-1999006 primarily affects Jenkins. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-1999006?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-1999006 published?

CVE-2018-1999006 was published on 2018-07-23 and last updated on 2026-06-17.

CVE-2018-1999006

CVE-2018-1999006 is a medium-severity vulnerability in Jenkins with a CVSS 3.x base score of 4.3. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Jenkins
Published: 2018-07-23
Last modified: 2026-06-17

Description

A exposure of sensitive information vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in Plugin.java that allows attackers to determine the date and time when a plugin HPI/JPI file was last extracted, which typically is the date of the most recent installation/upgrade.

Frequently asked questions

What is CVE-2018-1999006?: A exposure of sensitive information vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in Plugin.java that allows attackers to determine the date and time when a plugin HPI/JPI file was last extracted, which typically is the date of the most recent installation/upgrade.
How severe is CVE-2018-1999006?: CVE-2018-1999006 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2018-1999006 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1999006?: CVE-2018-1999006 primarily affects Jenkins. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-1999006?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-1999006 published?: CVE-2018-1999006 was published on 2018-07-23 and last updated on 2026-06-17.

References

https://jenkins.io/security/advisory/2018-07-18/#SECURITY-925

Affected products (2)

cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*

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