> CVE-2026-55548 [MEDIUM]

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PUBLISHED
2026-07-16 17:16
MODIFIED
2026-07-16 17:35
CVSS_SCORE V3
4.3
EPSS (Prob. Exploit)
0.36%
Top 71.3%
DATA SOURCES:
NVD 🔗 2026-07-16 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-11-05 OSV 🔗 2026-09-14

> 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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EXPLOITABILITY
2.8
IMPACT
1.4

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
Low (L)
Divulgation limitée d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
Low
Divulgation limitée d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-284 CWE-862

> CWE DETAILED DESCRIPTIONS

CWE-284: Improper Access Control - The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. | CWE-862: Missing Authorization - The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

> GITHUB SECURITY ADVISORY

GHSA-8xjq-pr36-ccgf MODERATE

Yamcs: Insecure Direct Object Reference (IDOR) in PacketsApi allows unprivileged users to dump all telemetry packets

AFFECTED PACKAGES:
MAVEN / org.yamcs:yamcs-core
<= 5.12.7
Fixed in: 5.12.8
MAVEN / org.yamcs:yamcs-core
>= 5.13.0, <= 5.13.1
Fixed in: 5.13.2

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Yamcs: Insecure Direct Object Reference (IDOR) in PacketsApi allows unprivileged users to dump all telemetry packets

AFFECTED PACKAGES:
Unknown / Unknown
152 versions affected
ALIASES:
GHSA-8xjq-pr36-ccgf

> HISTORIQUE DES MODIFICATIONS

Première apparition
16/07/2026 17:16
Source: NVD
📊 ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-284: Improper Access Control - The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. | CWE-862: Missing Authorization - The product does not perfo...
Total des modifications: 1 Dernière mise à jour: 3 months ago

> REFERENCES

https://github.com/yamcs/yamcs/commit/b566beceba98cc35514b0e1519be126b8c5a0438
https://github.com/yamcs/yamcs/commit/c743cc3acf5b5c53ff5181b94eacc21340f70dd9
https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8
https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2
https://github.com/yamcs/yamcs/security/advisories/GHSA-8xjq-pr36-ccgf
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