No patch or specific mitigation details were provided in the source. Affected organizations should monitor official Issabel security advisories, restrict network access to the framework interface, and apply available updates when released.
Quick answers
What is CVE-2026-89026?
No patch or specific mitigation details were provided in the source. Affected organizations should monitor official Issabel security advisories, restrict network access to the framework interface, and apply available updates when released.
How severe is CVE-2026-89026?
critical, CVSS 9.8
Is CVE-2026-89026 known to be exploited?
It is not marked known-exploited in this record.
How should CVE-2026-89026 be mitigated?
No patch or specific mitigation details were provided in the source. Affected organizations should monitor official Issabel security advisories, restrict network access to the framework interface, and apply available updates when released.
CVSS
9.8
Vendor
Issabel
Published
Sep 30, 2026 · 08:43
Patch
Unknown / not confirmed
Affected products
Issabel Framework
Mitigation
No patch or specific mitigation details were provided in the source. Affected organizations should monitor official Issabel security advisories, restrict network access to the framework interface, and apply available updates when released.
A critical vulnerability in Issabel Framework, a web-based framework for open-source unified communications PBX software, is under active exploitation. Tracked as CVE-2026-89026, the flaw carries a CVSS v3.1 score of 9.8 and a CVSS v4.0 score of 9.3, allowing unauthenticated remote attackers to execute arbitrary operating system commands. Exploitation was reported following publication on 2026-09-16, though specific attack details remain unverified.
