Missing Authorization Affecting github.com/free5gc/smf/internal/sbi package, versions <1.4.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMFREE5GCSMFINTERNALSBI-16624683
- published10 May 2026
- disclosed8 May 2026
- creditLinZiyuu
Introduced: 8 May 2026
CVE-2026-44321 (opens in a new tab)How to fix?
Upgrade github.com/free5gc/smf/internal/sbi to version 1.4.4 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authorization through the POST /upi/v1/upNodesLinks handler, which processes attacker-controlled JSON input without authentication or authorization checks. An attacker can terminate the entire process by submitting a crafted request that causes a validation failure in the UpNodesFromConfiguration process, leading to a call to Fatalf and immediate process exit.