Missing Authorization Affecting github.com/free5gc/pcf/internal/sbi package, versions <1.4.3
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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- published10 May 2026
- disclosed7 May 2026
- creditLinZiyuu
Introduced: 7 May 2026
CVE-2026-42083 (opens in a new tab)How to fix?
Upgrade github.com/free5gc/pcf/internal/sbi to version 1.4.3 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authorization due to missing authentication middleware in the smPolicyGroup route group, which allows unauthenticated requests to access sensitive endpoints. An attacker can gain unauthorized access to subscriber information, including identifiers such as supi, by sending requests directly to the affected endpoints without providing valid authentication credentials.