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PUBLISHED

2026-01-23 16:15

MODIFIED

2026-01-23 16:15

EPSS (Prob. Exploit)

0.36%

Top 69.9%

DATA SOURCES:

NVD 🔗 2026-01-23 FIRST EPSS 🔗 2026-11-08 GITHUB 🔗 2026-10-28 OSV 🔗 2026-11-08

> DESCRIPTION

An issue was discovered in Free5gc NRF 1.4.0. In the access-token generation logic of free5GC, the AccessTokenScopeCheck() function in file internal/sbi/processor/access_token.go bypasses all scope validation when the attacker uses a crafted targetNF value. This allows attackers to obtain an access token with any arbitrary scope.

> AFFECTED_PRODUCTS

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

> GITHUB SECURITY ADVISORY

GHSA-q7c8-gfjh-8v4p CRITICAL

Free5gc NRF is vulnerable to scope validation bypass via maliciously crafted targetNF value

AFFECTED PACKAGES:

GO / github.com/free5gc/nrf

< 1.4.1

Fixed in: 1.4.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

AFFECTED PACKAGES:

Unknown / Unknown

2 versions affected

ALIASES:

GHSA-q7c8-gfjh-8v4p, GO-2026-5570

> HISTORIQUE DES MODIFICATIONS

Première apparition

23/01/2026 16:15

Source: NVD

Total des modifications: 0 Dernière mise à jour: 9 months ago

> REFERENCES

https://github.com/free5gc/free5gc/issues/736

https://github.com/free5gc/nrf/pull/73