Improper Check for Unusual or Exceptional Conditions Affecting github.com/free5gc/udr/internal/sbi/processor 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
- disclosed8 May 2026
- creditLinZiyuu
Introduced: 8 May 2026
CVE-2026-44324 (opens in a new tab)How to fix?
Upgrade github.com/free5gc/udr/internal/sbi/processor to version 1.4.3 or higher.
Overview
Affected versions of this package are vulnerable to Improper Check for Unusual or Exceptional Conditions through improper handling of missing user identifiers in the RemoveAmfSubscriptionsInfoProcedure process. An attacker can cause the application to panic and return a 500 Internal Server Error by sending a single authenticated DELETE request with a nonexistent ueId, resulting in repeated service disruption. This is only exploitable if the attacker possesses a valid OAuth2 access token for the affected endpoint.