Medium

LDAP filter injection in Bouncy Castle LDAPStoreHelper

IdentifiersCVE-2026-59652CWE-90· Improper Neutralization of Special…

CVE-2026-59652 is an LDAP filter injection vulnerability in the legacy jdk1.4 LDAPStoreHelper component of Bouncy Castle for Java before version 1.85. Attacker-controlled input reaching LDAP filter construction may inject filter expressions and alter LDAP query behavior. Depending on application inputs and LDAP permissions, exploitation may allow access to or manipulation of unintended directory data.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Exploitation may alter LDAP query behavior and potentially expose or manipulate unintended directory data. The extent of confidentiality and integrity impact depends on how the application supplies input to LDAPStoreHelper and the permissions available to its LDAP operations.

Mitigation

If you can’t patch tonight, do this now.

Until an upgrade is deployed, avoid using the legacy jdk1.4 LDAPStoreHelper component. Prevent untrusted input from reaching LDAP filter construction, strictly allowlist expected values, and apply LDAP filter escaping or parameterization where applicable.

Remediation

Patch, then assume compromise.

Upgrade Bouncy Castle for Java to version 1.85 or later. For affected VMware Tanzu Data Flow on Kubernetes deployments, upgrade to version 2.1.5, which resolves this CVE.

PUBLIC EXPLOITS

Exploits

No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.

VALID 0 / 1 TOTALView more in app

All candidate exploits were filtered out by Mallory's validation.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

Bouncy CastleBc-Javaapplication

Bouncy CastleBouncy Castle For Javaapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

4 SOURCESView more in app

ghsa syntheticNews

Aug 3, 2026

GHSA-mf66-6236-xhfw

An LDAP filter injection vulnerability in the legacy jdk1.4 LDAPStoreHelper component of Bouncy Castle for Java versions before 1.85.

bugflationNews

Aug 2, 2026

Bouncy Castle records twenty-nine Claude-assisted CVEs - Bugflation

One of a cluster of Bouncy Castle vulnerabilities in a sustained campaign affecting security boundaries across Java, LTS, and FIPS lines; exact flaw details are not provided in the content.

What this page doesn’t show

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity1