CVE-2026-59652 LDAP filter injection in legacy jdk1.4 LDAPStoreHelper
Medium 6.9
Published
Updated
Check this codebase for CVE-2026-59652 and fix it if it is affected.
What it is: CVE-2026-59652 is a medium-severity vulnerability in Bouncycastle Bc-Java, published on 3 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-59652 in the wild and no public exploit code.
Affected product: Bouncycastle Bc-Java. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-59652/ (Markdown: https://insights.sbomify.com/CVE-2026-59652/index.md)
An LDAP filter injection vulnerability in the legacy jdk1.4 LDAPStoreHelper allows attackers to bypass security controls in Bouncy Castle for Java.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-59652?
CVE-2026-59652 is a medium-severity vulnerability in Bouncycastle Bc-Java, published on 3 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Bouncy Castle for Java before 1.85, LDAP filter injection in legacy jdk1.4 LDAPStoreHelper.
Weakness: CWE-90
Which versions are affected by CVE-2026-59652?
It affects 1 product.
Products include Bouncycastle Bc-Java.
How do I fix CVE-2026-59652?
Upgrade to a fixed version.
Is CVE-2026-59652 being exploited?
There is no known exploitation of CVE-2026-59652 in the wild and no public exploit code.
Other vulnerabilities in Bouncycastle Bc-Java
- CVE-2007-6721 Legion of the Bouncy Castle Java Cryptography API Bleichenbacher Oracle Vulnerability
- CVE-2018-1000613 Deserialization of Untrusted Data in Bouncy castle
- CVE-2026-58062 Stapled OCSP response accepted without binding to the checked certificate
- CVE-2026-59638 JSSE hostname verifier CN-fallback enabled by default despite documented opt-in
- CVE-2026-59650 MTI/A0 DH agreement exponentiates unvalidated peer value
Sources
Also known as DEBIAN-CVE-2026-59652, GHSA-mf66-6236-xhfw, UBUNTU-CVE-2026-59652.