Critical severity9.1OSV Advisory· Published Jan 23, 2026· Updated Jun 17, 2026
CVE-2025-66719
CVE-2025-66719
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/free5gc/nrfGo | < 1.4.1 | 1.4.1 |
Affected products
4- osv-coordsRange: < 0.0.20260723T184607-160000.1.1
Patches
Vulnerability mechanics
References
5- github.com/free5gc/nrf/pull/73nvdIssue TrackingPatchWEB
- github.com/free5gc/free5gc/issues/736nvdExploitIssue TrackingWEB
- github.com/advisories/GHSA-q7c8-gfjh-8v4pghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-66719ghsaADVISORY
- github.com/free5gc/free5gc/issues/733ghsaWEB
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