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PUBLISHED

2026-09-15 16:17

MODIFIED

2026-09-15 16:17

CVSS_SCORE V3

6.0

EPSS (Prob. Exploit)

0.38%

Top 69.7%

DATA SOURCES:

NVD 🔗 2026-09-15 CWE MITRE 🔗 2026-10-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-10-08 OSV 🔗 2026-09-22

> DESCRIPTION

qbee transport is a remote access transport protocol implementation. Prior to 1.26.25, the extractTar routine uses strictly lexical path validation that does not account for on-disk symlinks created earlier in the extraction process. A crafted tar archive can use a symlink chain to write or overwrite files one directory level above the intended extraction path. When qbee-agent performs the extraction with root privileges, this permits a root-privileged file write outside the intended destination. This issue is fixed in version 1.26.25.

> 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:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/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:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/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	High (H)	Conditions spécifiques doivent être réunies 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	None (N)	Aucune divulgation d'informations
I (Impact Intégrité) Integrity Impact	High (H)	Modification totale des données possible
A (Impact Disponibilité) Availability Impact	Low (L)	Interruption partielle du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité

None

Aucune divulgation d'informations

Intégrité

High

Modification totale des données possible

Disponibilité

Low

Interruption partielle du service possible

> WEAKNESSES

CWE-22 CWE-59

> CWE DETAILED DESCRIPTIONS

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') - The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. | CWE-59: Improper Link Resolution Before File Access ('Link Following') - The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

> GITHUB SECURITY ADVISORY

GHSA-f9m7-vc86-p6jj MODERATE

go.qbee.io/transport: Symlink-chain path traversal in tar extraction (one level outside destination)

AFFECTED PACKAGES:

GO / go.qbee.io/transport

< 1.26.25

Fixed in: 1.26.25

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

qbee transport: Symlink-chain path traversal in tar extraction (one level outside destination)

AFFECTED PACKAGES:

Unknown / Unknown

17 versions affected

ALIASES:

GHSA-f9m7-vc86-p6jj, GO-2026-5352

> HISTORIQUE DES MODIFICATIONS

Première apparition

15/09/2026 16:17

Source: NVD

📊 ENRICHISSEMENT 01/10/2026 06:01

CWE

Champ modifié: Description CWE

Ancienne valeur:

N/A

Nouvelle valeur:

Total des modifications: 1 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://github.com/qbee-io/transport/commit/43947671ba9be8fb08b105f3539a112ee7a5...

https://github.com/qbee-io/transport/pull/19

https://github.com/qbee-io/transport/security/advisories/GHSA-f9m7-vc86-p6jj