Description
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 ctx.checkObjectPrivileges(ObjectPrivilegeType.ReadPacket, nameSet) call passed over an empty set, no WHERE pname IN filter was applied to the resulting SELECT * FROM tm query, and the onTuple handler streamed every retrieved packet without any per-row authorization check, so a low-privileged or zero-privilege authenticated user could dump the entire raw telemetry packet archive and bypass the role-based access control model. This issue is fixed in versions 5.12.8 and 5.13.2, which enforce per-packet ReadPacket checks in exportPackets.
Severity (CVSS)
| Base score | 4.3 |
|---|---|
| Severity | Medium |
| Version | CVSS 3.1 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| Provided by | CNA |
Weaknesses
- CWE-284 — CWE-284: Improper Access Control
- CWE-862 — CWE-862: Missing Authorization
Affected products
| Vendor | Product | Versions |
|---|---|---|
| yamcs | yamcs | < 5.12.8; >= 5.13.0, < 5.13.2 |
References
- https://github.com/yamcs/yamcs/security/advisories/GHSA-8xjq-pr36-ccgf (x_refsource_CONFIRM)
- https://github.com/yamcs/yamcs/commit/b566beceba98cc35514b0e1519be126b8c5a0438 (x_refsource_MISC)
- https://github.com/yamcs/yamcs/commit/c743cc3acf5b5c53ff5181b94eacc21340f70dd9 (x_refsource_MISC)
- https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8 (x_refsource_MISC)
- https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2 (x_refsource_MISC)
Generated from the official CVE List on 17 Jul 2026 07:01 UTC.