CVE-2026-55414

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Source
https://cve.org/CVERecord?id=CVE-2026-55414
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55414.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-55414
Aliases
Published
2026-10-15T17:33:04Z
Modified
2026-10-17T02:48:30Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
NL Portal Backend Libraries: Unauthenticated form resolver forwards the privileged Objecten-API token to a caller-supplied URL (SSRF)
Details

NL Portal Backend Libraries provide backend components for Dutch government portals that interact with residents, customers, suppliers, and partner organizations. From 1.1.0 until 3.0.4, and in 3.1.0, the public getFormDefinitionByObjectenApiUrl and deprecated getFormDefinitionById GraphQL resolvers are reachable without CommonGroundAuthentication and forward a caller-influenced URL through ObjectenApiService.getObjectByUrl to ObjectsApiClient.getObjectByUrl, which attaches the privileged Objecten-API token. The host-equality check restricts requests to the configured Objecten-API host but does not constrain the scheme, port, or path, allowing an unauthenticated caller to induce a token-bearing request to a chosen endpoint on that host. Standard deployments are not exposed to cross-host SSRF, token capture requires attacker-controlled routing on the configured host, and typed deserialization limits returned data to objects shaped like form definitions. The 3.0 release line is fixed in version 3.0.4. The advisory does not identify a fixed 3.1 release.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-862",
        "CWE-918"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55414.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "= 3.1.0"
                },
                {
                    "last_affected":  "= 3.1.0"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/nl-portal/nl-portal-backend-libraries

Affected ranges

Type
GIT
Repo
https://github.com/nl-portal/nl-portal-backend-libraries
Events
Introduced
cdda5ad8f18c0bae292cdd6c1c0fec8278f7ca04
Fixed
5ea04ef6445443e22e40a23fbed447e618b70c3f
Fixed
39ad80f338fb522f19dded394c9fd964d96827a3
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "1.1.0"
        },
        {
            "fixed":  "3.0.4"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55414.json"