CVE-2026-55548
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.
How to fix
- spaceapplications yamcs5.12.8, 5.13.2 or later
- org.yamcs:yamcs-core5.13.2, 5.12.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| spaceapplications yamcs | v < 5.12.8, 5.13.0 ≤ v < 5.13.2 | 5.12.8, 5.13.2 |
| org.yamcs:yamcs-coreMaven | 5.13.0 ≤ v < 5.13.2, v < 5.12.8 | 5.13.2, 5.12.8 |
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