CVE-2026-44325

Source
https://cve.org/CVERecord?id=CVE-2026-44325
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44325.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-44325
Aliases
Published
2026-05-27T15:43:34.136Z
Modified
2026-07-08T08:13:30.187453266Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
free5GC: NRF POST /oauth2/token structured-form parser type-confusion panic family (Reflect.Set on incompatible types)
Details

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NRF root SBI endpoint POST /oauth2/token contains a parser-level type-confusion bug family. The handler in NFs/nrf/internal/sbi/api_accesstoken.go reflects over models.NrfAccessTokenAccessTokenReq, special-cases only plain string and NrfNfManagementNfType fields, and treats every other field as if it were a single models.PlmnId. The parsed *models.PlmnId is then assigned with reflect.Value.Set() to whichever field name the attacker put in the form body, which panics whenever the destination field's real type is incompatible (slice, different struct, primitive). Gin recovery converts each panic into HTTP 500, but the endpoint remains remotely panicable from a single unauthenticated form-encoded request and is repeatedly triggerable. This vulnerability is fixed in 4.2.2.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44325.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-20",
        "CWE-755",
        "CWE-843"
    ]
}
References

Affected packages

Git / github.com/free5gc/free5gc

Affected ranges

Type
GIT
Repo
https://github.com/free5gc/free5gc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Database specific
{
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "cpe": "cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.2.2"
        }
    ]
}
Type
GIT
Repo
https://github.com/free5gc/nrf
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Database specific
{
    "source": "REFERENCES"
}

Affected versions

v1.*
v1.0.0
v1.0.1
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
v3.*
v3.0.5
v3.0.6
v3.0.7
v3.1.0
v3.1.1
v3.2.0
v3.2.1
v3.3.0
v3.4.0
v3.4.1
v3.4.2
v3.4.3
v3.4.4
v3.4.5
v4.*
v4.0.0
v4.0.1
v4.1.0
v4.2.0
v4.2.1

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44325.json"