> CVE-2026-23517 [MEDIUM]

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PUBLISHED
2026-01-21 22:15
MODIFIED
2026-01-21 22:15
CVSS_SCORE V3
6.3
EPSS (Prob. Exploit)
0.29%
Top 79.3%
DATA SOURCES:
NVD đź”— 2026-01-21 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-10-25 GITHUB đź”— 2026-10-28 OSV đź”— 2026-01-26

> DESCRIPTION

Fleet is open source device management software. A broken access control issue in versions prior to 4.78.3, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 allowed authenticated users to access debug and profiling endpoints regardless of role. As a result, low-privilege users could view internal server diagnostics and trigger resource-intensive profiling operations. Fleet’s debug/pprof endpoints are accessible to any authenticated user regardless of role, including the lowest-privilege “Observer” role. This allows low-privilege users to access sensitive server internals, including runtime profiling data and in-memory application state, and to trigger CPU-intensive profiling operations that could lead to denial of service. Versions 4.78.3, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 fix the issue. If an immediate upgrade is not possible, users should put the debug/pprof endpoints behind an IP allowlist as a workaround.

> AFFECTED_PRODUCTS

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

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-862

> CWE DETAILED DESCRIPTIONS

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-4r5r-ccr6-q6f6 HIGH

Fleet has an Access Control vulnerability in debug/pprof endpoints

AFFECTED PACKAGES:
GO / github.com/fleetdm/fleet/v4
< 4.78.3-0.20260112221730-5c030e32a3a9
Fixed in: 4.78.3-0.20260112221730-5c030e32a3a9
GO / github.com/fleetdm/fleet
>= 4.75.0, < 4.75.2
Fixed in: 4.75.2
GO / github.com/fleetdm/fleet
>= 4.76.0, < 4.76.2
Fixed in: 4.76.2
GO / github.com/fleetdm/fleet
>= 4.77.0, < 4.77.1
Fixed in: 4.77.1
GO / github.com/fleetdm/fleet
>= 4.78.0, < 4.78.3
Fixed in: 4.78.3

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Fleet has an Access Control vulnerability in debug/pprof endpoints

AFFECTED PACKAGES:
Unknown / Unknown
14 versions affected
ALIASES:
GHSA-4r5r-ccr6-q6f6

> HISTORIQUE DES MODIFICATIONS

Première apparition
21/01/2026 22:15
Source: NVD
📊 ENRICHISSEMENT 01/02/2026 06:44
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-862: Missing Authorization - The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Total des modifications: 1 Dernière mise à jour: 9 months ago

> REFERENCES

https://github.com/fleetdm/fleet/commit/5c030e32a3a9bc512355b5e1bf19636e4e6d0317
https://github.com/fleetdm/fleet/security/advisories/GHSA-4r5r-ccr6-q6f6
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