CVE-2026-89026

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Source

https://cve.org/CVERecord?id=CVE-2026-89026

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89026.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-89026

Published

2026-09-15T16:41:39Z

Modified

2026-09-18T11:30:14Z

Severity

9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

Issabel Framework Hard-coded JWT Key RCE via pbxapi/manager/originate

Details

The Issabel Framework, the web framework supporting Issabel PBX software, before commit b97dbaf contains a hard-coded HS256 JWT signing key in the pbxapi index.php file that is identical across every installation, allowing unauthenticated remote attackers to forge valid bearer tokens. Attackers can use the forged token to call the manager originate endpoint with the System application parameter, causing Asterisk to execute arbitrary OS commands as the Asterisk user. Exploitation evidence was first observed by the Shadowserver Foundation on 2026-09-09.

Database specific

{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-321"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89026.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "fixed": "b97dbaf0b71c1c36f841e672b664afbeb02773bd"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/issabelfoundation/framework

Affected ranges

Type

GIT

Repo

https://github.com/issabelfoundation/framework

Events

Introduced

Fixed

b97dbaf0b71c1c36f841e672b664afbeb02773bd

Database specific

Show details

{
    "source": "REFERENCES"
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89026.json"