{"id":"CVE-2026-89026","title":"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 unauthenticate…","summary":"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 unauthenticate…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-321"],"vendor":"Issabel Foundation","product":"Issabel Framework","affected":["issabel_framework < b97dbaf0b71c1c36f841e672b664afbeb02773bd"],"published":"2026-09-15","updated":"2026-09-24","sourceUpdated":"2026-09-24T21:08:55.030","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89026","references":[{"url":"https://github.com/IssabelFoundation/framework/commit/b97dbaf0b71c1c36f841e672b664afbeb02773bd","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/issabel-pbx-hard-coded-jwt-key-rce-via-pbxapi-manager-originate","label":"disclosure@vulncheck.com"}],"tags":["nvd","exploit-available","cve.org"],"epss":0.00685,"epssPercentile":0.50491,"exploits":{"github":2,"githubRepos":["https://github.com/cflowsec/CVE-2026-89026","https://github.com/AranFarzami/CVE-2026-89026"],"checkedAt":"2026-09-24T21:53:34.697Z"},"exploitAvailable":true,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-17T19:18:08.040082Z"},"ingestedAt":"2026-09-15T17:41:02.867Z","slug":"CVE-2026-89026","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":206547,"id":"CVE-2026-89026","ts":1789676925495,"field":"exploit_available","old":"false","new":"true"}]}