CVE-2026-44595

CVE-2026-44595 affects Yamcs’ core IAM API endpoints: GET /api/iam/users, GET /api/iam/users/{name}, GET /api/iam/groups, and GET /api/iam/groups/{name}. The root cause is missing enforcement of SystemPrivilege.ControlAccess in Yamcs’ IAM API (IamApi.java), enabling any authenticated user—even wi...

CVE-2026-44595 Yamcs: Unauthorized user enumeration via IAM API endpoints

Yamcs is a mission control framework. Prior to 5.12.7, the IAM API endpoints listUsers, getUser, listGroups, and getGroup in yamcs-core did not enforce the required SystemPrivilege.ControlAccess check in yamcs-core/src/main/java/org/yamcs/http/api/IamApi.java, so any authenticated user, even one...

EUVD-2026-44954

Yamcs is a mission control framework. Prior to 5.12.7, the IAM API endpoints listUsers, getUser, listGroups, and getGroup in yamcs-core did not enforce the required SystemPrivilege.ControlAccess check in yamcs-core/src/main/java/org/yamcs/http/api/IamApi.java, so any authenticated user, even one...

PT-2026-60503

Name of the Vulnerable Software and Affected Versions Yamcs versions prior to 5.12.8 Yamcs versions prior to 5.13.2 Description The PacketsApi.exportPackets endpoint in yamcs-core/src/main/java/org/yamcs/http/api/PacketsApi.java fails to enforce object-level ReadPacket privileges when a request...

CVE-2026-46621: Improper Control of Generation of Code

Yamcs is a mission control framework. Prior to 5.12.7, the Yamcs script evaluation engine for Python algorithms dynamically compiled and evaluated user-controlled algorithm text using Jython through the JSR-223 ScriptEngine API without enforcing a secure sandbox, so an authenticated user with the...

CVE-2026-44632: Improper Control of Generation of Code

Yamcs is a mission control framework. Prior to 5.12.7, a server-side code injection vulnerability existed in the Yamcs algorithm evaluation engine org.yamcs.algorithms.JavaExprAlgorithmExecutionFactory, which dynamically compiled and evaluated user-controlled algorithm text through the Janino...

CVE-2026-44595: Missing Authorization

Yamcs is a mission control framework. Prior to 5.12.7, the IAM API endpoints listUsers, getUser, listGroups, and getGroup in yamcs-core did not enforce the required SystemPrivilege.ControlAccess check in yamcs-core/src/main/java/org/yamcs/http/api/IamApi.java, so any authenticated user, even one...

CVE-2026-46562: Improper Control of Generation of Code

Yamcs is a mission control framework. Prior to 5.12.7, the Nashorn ScriptEngine used to evaluate user-supplied JavaScript algorithm text in yamcs-core/src/main/java/org/yamcs/algorithms/ScriptAlgorithmExecutorFactory.java was constructed without a ClassFilter, so a user with the...

CVE-2026-44596: Improper Restriction of Excessive Authentication Attempts

Yamcs is a mission control framework. Prior to 5.12.7, the authentication endpoint POST /auth/token in yamcs-core, handled by yamcs-core/src/main/java/org/yamcs/http/auth/AuthHandler.java, lacked any rate limiting, account lockout, or failed-attempt throttling, so an unauthenticated remote attack...

CVE-2026-55548: Improper Access Control

Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, the PacketsApi.exportPackets endpoint in yamcs-core/src/main/java/org/yamcs/http/api/PacketsApi.java failed to enforce object-level ReadPacket privileges when a request omitted specific packet names: with an empty name list the...

Exploit for CVE-2026-55511

CVE-2026-55511 PoC Non-weaponized proof of concept for a Yamc...

📄 YAMCS 5.12.6 LdapAuthModule LDAP Injection / Authentication Bypass

This Metasploit module exploits an LDAP injection vulnerability in the YAMCS LdapAuthModule. The username parameter is inserted directly into LDAP search filters without RFC 4515 escaping, allowing an attacker to bypass authentication. By crafting a malicious username containing LDAP special...

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

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...

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

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...

CVE-2026-42568

CVE-2026-42568 affects YAMCS when LdapAuthModule is configured. The root cause is that the username parameter is inserted directly into LDAP search filters without RFC 4515 escaping, enabling an authentication bypass (e.g., username=*) and potentially granting access to tokens for first matching ...

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

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...

Code Injection

Yamcs is vulnerable to Code Injection. The vulnerability is due to the dynamic compilation and execution of user-controlled Python algorithm code through Jython without a secure sandbox, which allows an authenticated attacker to execute arbitrary code on the underlying host system...

CVE-2026-42568: Improper Neutralization of Special Elements used in an LDAP Query

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...

Yamcs security vulnerabilities

Yamcs is an open-source software framework developed by Yamcs. It is used for commanding and controlling spacecraft, satellites, payloads, ground stations, and ground equipment. There are security vulnerabilities in YAMCS, and attackers can exploit these vulnerabilities to perform LDAP injection...

YAMCS yamcs-core 5.12.7 - No Rate Limiting

Exploit Title: YAMCS yamcs-core 5.12.7 - No Rate Limiting Date: 2026-05-27 Exploit Author: Daniel Miranda Barcelona Excal1bur Vendor Homepage: https://yamcs.org Software Link: https://github.com/yamcs/yamcs Version: 5.12.7 Tested on: Linux CVE: CVE-2026-44596 Category: Remote / Brute Force...