CVE-2026-42568 Yamcs Vulnerable to LDAP Injection in LdapAuthModule
Attackers can inject LDAP queries via username to bypass authentication or read data in Yamcs mission control.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-42568?
CVE-2026-42568 is a medium-severity vulnerability in yamcs, published on 10 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-90
Which versions are affected by CVE-2026-42568?
2 open source packages ship an affected version, including org.yamcs:yamcs-core.
| Package | Affected | Fixed in |
|---|---|---|
org.yamcs:yamcs-core Maven | All versions | 5.12.7 |
org.yamcs:yamcs-core Maven | All versions | 5.12.7 |
How do I fix CVE-2026-42568?
Upgrade org.yamcs:yamcs-core to 5.12.7 or later.
Is CVE-2026-42568 being exploited?
There is no known exploitation of CVE-2026-42568 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.
Sources
Also known as GHSA-cqh3-jg8p-336j.