What’s Vulnerable › Vulnerabilities

CVE-2026-0636: LDAP Injection Vulnerability in LDAPStoreHelper.java

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-15 · updated 2026-10-26
• Weakness: CWE-90

Description

Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcprov on all (prov modules). This vulnerability is associated with program files LDAPStoreHelper. This issue affects BC-JAVA: from 1.74 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84.

Affected products

• Legion of the Bouncy Castle Inc. BC-JAVA: from 1.74 before 1.80.2; from 1.81 before 1.81.1; from 1.82 before 1.84 — fixed in 1.80.2, 1.81.1, 1.84

How to fix

Upgrade to a fixed version: Legion of the Bouncy Castle Inc. BC-JAVA 1.80.2, 1.81.1, 1.84. Check the vendor advisory for mitigations.

References

• https://github.com/bcgit/bc-java/commit/d20cdb8430e09224114fec0179a71859929fcbde
• https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%900636
• https://access.redhat.com/errata/RHSA-2026:11720
• https://access.redhat.com/errata/RHSA-2026:11721
• https://access.redhat.com/errata/RHSA-2026:13631
• https://access.redhat.com/errata/RHSA-2026:14272
• https://access.redhat.com/errata/RHSA-2026:14276
• https://access.redhat.com/errata/RHSA-2026:17668
• https://access.redhat.com/errata/RHSA-2026:18054
• https://access.redhat.com/errata/RHSA-2026:18055
• https://access.redhat.com/errata/RHSA-2026:18059
• https://access.redhat.com/errata/RHSA-2026:21772

Get alerted when CVE-2026-0636 or the next vulnerability affects your stack