Unsafe Deserialization in org.jenkins-ci.plugins:ldap (CVE-2026-48917)
Summary
Vulnerability in org.jenkins-ci.plugins:ldap (CVE-2026-48917). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 807.809.vd3a or later.
Original description
The description as published by the source.
Jenkins LDAP Plugin 807.v7d7de30930cf and earlier deserializes data from LDAP referrals without validation.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-48917 has been found in org.jenkins-ci.plugins:ldap.
Successful exploitation can lead to full system takeover. CVSS score: 6.6/10.
What to do: upgrade org.jenkins-ci.plugins:ldap to 807.809.vd3a or later.
If unsure, ask your IT team or search "org.jenkins-ci.plugins:ldap CVE-2026-48917" on the vendor's site.
CVE-2026-48917 (org.jenkins-ci.plugins:ldap) — CWE-502 / CVSS v3 6.6
Attack vector: remote (network-reachable) / no user interaction
Patched: 807.809.vd3a — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Unsafe deserialization (CWE-502) exists in org.jenkins-ci.plugins:ldap.
Check the vendor advisory for the affected versions of org.jenkins-ci.plugins:ldap.
Severity: Medium (CVSS 6.6/10). Successful exploitation can lead to full system takeover.
Update to 807.809.vd3a.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで org.jenkins-ci.plugins:ldap を使っているサービスとバージョンを洗い出す。
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2Apply patch patch
Upgrade org.jenkins-ci.plugins:ldap to 807.809.vd3aステージング環境で 807.809.vd3a に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory jenkins.io
- advisory nvd.nist.gov
- package github.com
- web github.com