How severe is GHSA-fmjp-mw89-c6h6?

GHSA-fmjp-mw89-c6h6 has a CVSS score of 6.6/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by GHSA-fmjp-mw89-c6h6?

GHSA-fmjp-mw89-c6h6 affects the following packages: org.jenkins-ci.plugins:ldap (Maven). Ecosystems affected: Maven.

How do I fix GHSA-fmjp-mw89-c6h6?

Update org.jenkins-ci.plugins:ldap to 807.809.vd3a or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-fmjp-mw89-c6h6 is resolved across your whole dependency graph.

How do I detect GHSA-fmjp-mw89-c6h6 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins:ldap. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

How do I mitigate GHSA-fmjp-mw89-c6h6 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against GHSA-fmjp-mw89-c6h6?

O3 pinpoints whether GHSA-fmjp-mw89-c6h6 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is GHSA-fmjp-mw89-c6h6 actively exploited in the wild?

No public exploit code has been indexed for GHSA-fmjp-mw89-c6h6 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-fmjp-mw89-c6h6?

GHSA-fmjp-mw89-c6h6 has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 20th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-fmjp-mw89-c6h6?

GHSA-fmjp-mw89-c6h6 is classified as Server-Side Request Forgery (SSRF) (CWE-918). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was GHSA-fmjp-mw89-c6h6 published, and has it been updated?

GHSA-fmjp-mw89-c6h6 was published on May 27, 2026 and was last updated on July 1, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

GHSA-fmjp-mw89-c6h6: Jenkins LDAP Plugin follows LDAP referrals…

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk20th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

1 pkg affected

☕org.jenkins-ci.plugins:ldap

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Jenkins LDAP Plugin 807.v7d7de30930cf and earlier follows LDAP referrals from the configured LDAP server. These can forward to an RMI URL that causes Jenkins to deserialize attacker-controlled data, resulting in Remote Code Execution (RCE) on the Jenkins controller if deserialization "gadgets" are available on the classpath.

This allows attackers able to control the configured LDAP server, or able to perform a machine-in-the-middle attack, to execute code on the Jenkins controller.

LDAP Plugin 807.809.vd3a_4e5e4ec98 no longer follows LDAP referrals.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.jenkins-ci.plugins:ldap`	all versions	807.809.vd3a

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins:ldap. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update org.jenkins-ci.plugins:ldap to 807.809.vd3a or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-fmjp-mw89-c6h6 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-fmjp-mw89-c6h6 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-fmjp-mw89-c6h6. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Jenkins LDAP Plugin 807.v7d7de30930cf and earlier follows LDAP referrals from the configured LDAP server. These can forward to an RMI URL that causes Jenkins to deserialize attacker-controlled data, resulting in Remote Code Execution (RCE) on the Jenkins controller if deserialization "gadgets" are available on the classpath. This allows attackers able to control the configured LDAP server, or able to perform a machine-in-the-middle attack, to execute code on the Jenkins controller. LDAP Plugin 807.809.vd3a_4e5e4ec98 no longer follows LDAP referrals.

O3 Security · Impact-Aware SCA

Is GHSA-fmjp-mw89-c6h6 in your dependencies?

O3 detects GHSA-fmjp-mw89-c6h6 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my dependencies How O3 SCA works

GHSA-fmjp-mw89-c6h6