CVE-2026-42568: Yamcs Vulnerable to LDAP Injection in LdapAuthModule

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-06-10 · updated 2026-07-21
Weakness: CWE-90

Description

Yamcs is a mission control framework. Prior to versions 5.13.0 and 5.12.7, an LDAP injection vulnerability exists in `org.yamcs.security.LdapAuthModule` when constructing search filters. The username parameter is inserted directly into the LDAP filter without proper RFC 4515 escaping. Versions 5.13.0 and 5.12.7 patch the issue.

Affected products

yamcs: before 5.12.7

References

https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7
https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.0
https://github.com/yamcs/yamcs/security/advisories/GHSA-cqh3-jg8p-336j

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