CVE-2023-43501: A missing permission check in Jenkins Build Failure Analyzer Plugin 2.4.1 and earlier allows attackers with Ov

Q: How do I fix CVE-2023-43501?

build failure analyzer: upgrade to 2.4.2. Exact commands for each OS are on this page.

Q: Is CVE-2023-43501 being exploited?

CVE-2023-43501 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-43501 affect?

CVE-2023-43501 affects build failure analyzer. Severity is medium (CVSS 6.5). A missing permission check in Jenkins Build Failure Analyzer Plugin 2.4.1 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified hostname and port using attacker-specified username and password.

Q: How urgent is CVE-2023-43501?

Priority 35/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2023-43501 is a medium-severity flaw (CVSS 6.5) affecting build failure analyzer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A missing permission check in Jenkins Build Failure Analyzer Plugin 2.4.1 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified hostname and port using attacker-specified username and password.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-862
Published	2023-09-20
Last modified	2026-06-17

Publisher (CNA): Jenkins Project · Vendor: jenkins

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-09-20 17:15 UTCPublished CVE record published
2026-06-17 06:25 UTCUpdated Record last modified

jenkins build failure analyzer UPGRADE

Affected: < 2.4.2

Fixed in: 2.4.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy build-failure-analyzer || rpm -q build-failure-analyzer || build-failure-analyzer --version

2. UPGRADE to 2.4.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade build-failure-analyzer

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade build-failure-analyzer

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-43501?

build failure analyzer: upgrade to 2.4.2. Exact commands for each OS are on this page.

Is CVE-2023-43501 being exploited?

CVE-2023-43501 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-43501 affect?

CVE-2023-43501 affects build failure analyzer. Severity is medium (CVSS 6.5). A missing permission check in Jenkins Build Failure Analyzer Plugin 2.4.1 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified hostname and port using attacker-specified username and password.

How urgent is CVE-2023-43501?

Priority 35/100. No elevated risk signals yet.

Software pages

Jenkins vulnerabilities

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References

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