CVE-2026-0636

LDAP Injection Vulnerability in LDAPStoreHelper.java

Published Apr 15, 2026 CVSS 4.0 · 5.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-c3fc-8qff-9hwx Bouncy Castle has an LDAP injection
References
Link Providers
https://access.redhat.com/errata/RHSA-2026:11720 cve-icon
https://access.redhat.com/errata/RHSA-2026:11721 cve-icon
https://access.redhat.com/errata/RHSA-2026:13631 cve-icon
https://access.redhat.com/errata/RHSA-2026:14272 cve-icon
https://access.redhat.com/errata/RHSA-2026:14276 cve-icon
https://access.redhat.com/errata/RHSA-2026:17668 cve-icon
https://access.redhat.com/errata/RHSA-2026:18054 cve-icon
https://access.redhat.com/errata/RHSA-2026:18055 cve-icon
https://access.redhat.com/errata/RHSA-2026:18059 cve-icon
https://access.redhat.com/errata/RHSA-2026:21772 cve-icon
https://access.redhat.com/errata/RHSA-2026:53644 cve-icon
https://access.redhat.com/errata/RHSA-2026:53645 cve-icon
https://access.redhat.com/errata/RHSA-2026:53646 cve-icon
https://access.redhat.com/errata/RHSA-2026:60239 cve-icon
https://access.redhat.com/errata/RHSA-2026:60246 cve-icon
https://access.redhat.com/errata/RHSA-2026:60247 cve-icon
https://access.redhat.com/errata/RHSA-2026:60248 cve-icon
https://access.redhat.com/errata/RHSA-2026:60249 cve-icon
https://access.redhat.com/errata/RHSA-2026:60250 cve-icon
https://access.redhat.com/errata/RHSA-2026:60251 cve-icon
https://access.redhat.com/errata/RHSA-2026:60252 cve-icon
https://access.redhat.com/errata/RHSA-2026:60254 cve-icon
https://access.redhat.com/errata/RHSA-2026:60256 cve-icon
https://access.redhat.com/errata/RHSA-2026:60259 cve-icon
https://access.redhat.com/errata/RHSA-2026:66488 cve-icon
https://access.redhat.com/security/cve/CVE-2026-0636 cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2458641 cve-icon
https://github.com/bcgit/bc-java/commit/d20cdb8430e09224114fec0179a71859929fcbde cve-icon cve-icon cve-icon
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%900636 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-0636 cve-icon
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0636.json cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-0636 cve-icon
History
Type Values Removed Values Added
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 1.84. 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.
Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

threat_severity

Important

Type Values Removed Values Added
First Time appeared Bouncycastle
Bouncycastle bc-java
Vendors & Products Bouncycastle
Bouncycastle bc-java
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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). LDAP Injection Vulnerability in LDAPStoreHelper.java This issue affects BC-JAVA: from 1.49 before 1.84. 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 1.84.
References
Metrics cvssV4_0

{'score': 10, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

cvssV4_0

{'score': 5.5, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/S:N/AU:Y/R:A/RE:M/U:Amber'}

Type Values Removed Values Added
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). LDAP Injection Vulnerability in LDAPStoreHelper.java This issue affects BC-JAVA: from 1.49 before 1.84.
Title LDAP Injection Vulnerability in LDAPStoreHelper.java
Weaknesses CWE-90
References
Metrics cvssV4_0

{'score': 10, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
bcorg
Published
Updated
Sep 18, 2026, 12:04 PM
Reserved
Jan 6, 2026, 3:18 AM
Status
Awaiting Analysis
Published
Apr 15, 2026, 10:16 AM
Modified
Oct 26, 2026, 9:10 PM
Severity
Important
Public date
Apr 15, 2026, 8:59 AM