CVE-2026-0636
Vulnerability Summary
Timeline
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.
CVSS Metrics
- v4.0•MEDIUM•Score: 5.5CVSS: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
- v4.0•MEDIUM•Score: 5.5CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:A/V:X/RE:M/U:Amber
- v4.0•MEDIUM•Score: 6.9CVSS: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/RE:M/U:Amber
- v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS Trends
Current EPSS score: 0.53%• Percentile: 41%
Techniques & Countermeasures
- CWE-90•Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.
Affected Systems
- legion of the bouncy castle inc.•bc-java
≥ 1.74, < 1.84 | ≥ 1.74, < 1.80.2 | ≥ 1.81, < 1.81.1 | ≥ 1.82, < 1.84
- org.bouncycastle•bcprov-jdk14
≥ 1.74, < 1.84
- org.bouncycastle•bcprov-jdk15to18
≥ 1.74, < 1.84
- org.bouncycastle•bcprov-jdk18on
≥ 1.74, < 1.84
References (17)
- https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%900636
- https://github.com/bcgit/bc-java/commit/d20cdb8430e09224114fec0179a71859929fcbde
- https://nvd.nist.gov/vuln/detail/CVE-2026-0636
- https://github.com/bcgit/bc-java
- https://access.redhat.com/security/cve/CVE-2026-0636
- https://bugzilla.redhat.com/show_bug.cgi?id=2458641
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0636.json
- https://access.redhat.com/errata/RHSA-2026:18054
- https://access.redhat.com/errata/RHSA-2026:18055
- https://access.redhat.com/errata/RHSA-2026:14276
- https://access.redhat.com/errata/RHSA-2026:14272
- https://access.redhat.com/errata/RHSA-2026:13631
- https://access.redhat.com/errata/RHSA-2026:18059
- https://access.redhat.com/errata/RHSA-2026:21772
- https://access.redhat.com/errata/RHSA-2026:17668
- https://access.redhat.com/errata/RHSA-2026:11720
- https://access.redhat.com/errata/RHSA-2026:11721