CVE-2026-4531

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Source
https://cve.org/CVERecord?id=CVE-2026-4531
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-4531.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-4531
Aliases
Published
2026-03-22T01:32:11.642Z
Modified
2026-07-15T01:48:55.770789393Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X CVSS Calculator
Summary
Free5GC AMF handler.go HandleRegistrationComplete denial of service
Details

A weakness has been identified in Free5GC 4.1.0. Affected is the function HandleRegistrationComplete of the file internal/gmm/handler.go of the component AMF. Executing a manipulation can lead to denial of service. The attack may be performed from remote. This patch is called 52e9386401ce56ea773c5aa587d4cdf7d53da799. It is best practice to apply a patch to resolve this issue.

Database specific 
{
    "cwe_ids": [
        "CWE-404"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4531.json",
    "cna_assigner": "VulDB"
}
References

Affected packages

Git / github.com/free5gc/amf

Affected ranges

Type
GIT
Repo
https://github.com/free5gc/amf
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
52e9386401ce56ea773c5aa587d4cdf7d53da799
Database specific 
{
    "source": "REFERENCES"
}
Type
GIT
Repo
https://github.com/free5gc/free5gc
Events
Introduced
de6bdb7a0d5963266c893cca59c86f55df348f57
Last affected
de6bdb7a0d5963266c893cca59c86f55df348f57
Database specific 
{
    "extracted_events": [
        {
            "introduced": "4.1.0"
        },
        {
            "last_affected": "4.1.0"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

4.*
4.1.0
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.1.0
v1.1.1
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.2.5
v1.2.6
v1.2.7
v1.3.0
v1.3.1
v1.3.2
v1.4.0
v1.4.1
v1.4.2
v4.*
v4.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-4531.json"