PT-2026-60503 · Yamcs · Yamcs

CVE-2026-55548 · Published 2026-07-16 · Updated 2026-07-16

NVD

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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.

Fix

Improper Access Control

Missing Authorization

Weakness Enumeration

CWE-284

CWE-862

Related Identifiers

CVE-2026-55548

Affected Products

Yamcs

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-55548 · Security Note
• https://github.com/yamcs/yamcs/commit/b566beceba98cc35514b0e1519be126b8c5a0438 · Note
• https://github.com/yamcs/yamcs/commit/c743cc3acf5b5c53ff5181b94eacc21340f70dd9 · Note
• https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2 · Note
• https://github.com/yamcs/yamcs/security/advisories/GHSA-8xjq-pr36-ccgf · Note
• https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8 · Note