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2 IOCs

Issabel PBX JWT Key Flaw Enables Unauthenticated Remote Code Execution

Cyber Press
Cyber Press
Published September 16, 2026Original Report

Excerpt

A critical vulnerability in the Issabel Framework could allow unauthenticated remote attackers to execute arbitrary operating-system commands on affected Issabel PBX deployments by exploiting a hard-coded JSON Web Token signing key. Tracked as CVE-2026-89026, the vulnerability affects Issabel Framework versions prior to commit b97dbaf0b71c1c36f841e672b664afbeb02773bd . The issue carries a CVSS v4 score of 9.3 and is classified as CWE-321, “Use of Hard-coded Cryptographic…

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Indicators of Compromise

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2 indicators

TypeIndicatorConfidenceScoreFirst Seen
CVECVE-2026-89026MediumScore 51/100First seen
SHA1b97dbaf0b71c1c36f841e672b664afbeb02773bdMediumScore 53/100First seen

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