How severe is CVE-2019-16555?

CVE-2019-16555 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-16555 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16555?

CVE-2019-16555 affects Jenkins Build Failure Analyzer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16555?

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

When was CVE-2019-16555 published?

CVE-2019-16555 was published on 2019-12-17 and last updated on 2026-06-17.

CVE-2019-16555

CVE-2019-16555 is a medium-severity vulnerability in Jenkins Build Failure Analyzer with a CVSS 3.x base score of 6.5. 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Jenkins Build Failure Analyzer
Published: 2019-12-17
Last modified: 2026-06-17

Description

A user-supplied regular expression in Jenkins Build Failure Analyzer Plugin 1.24.1 and earlier was processed in a way that wasn't interruptible, allowing attackers to have Jenkins evaluate a regular expression without the ability to interrupt this process.

Frequently asked questions

What is CVE-2019-16555?: A user-supplied regular expression in Jenkins Build Failure Analyzer Plugin 1.24.1 and earlier was processed in a way that wasn't interruptible, allowing attackers to have Jenkins evaluate a regular expression without the ability to interrupt this process.
How severe is CVE-2019-16555?: CVE-2019-16555 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-16555 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16555?: CVE-2019-16555 affects Jenkins Build Failure Analyzer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16555?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-16555 published?: CVE-2019-16555 was published on 2019-12-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:build_failure_analyzer:*:*:*:*:*:jenkins:*:*

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