Thehackernews Critical Vulnerability in Issabel Framework Allows Remote Code Execution
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- •CVE-2026-89026 allows unauthenticated OS command execution via a hard-coded JWT key.
- •Exploitation of the vulnerability has been confirmed since September 9, 2026.
- •A patch was released on August 1, 2026; users must update or restrict access to mitigate risks.
A severe vulnerability (CVE-2026-89026) in the Issabel Framework has been identified, allowing unauthenticated remote attackers to execute arbitrary OS commands. The flaw stems from a hard-coded JSON Web Token (JWT) signing key in the pbxapi/index.php file, which is identical across all installations. Exploitation began on September 9, 2026, as confirmed by the Shadowserver Foundation. A patch was released on August 1, 2026, but many systems remain unpatched. Users are urged to update to the latest version or restrict access to the vulnerable endpoint. The CVSS score for this vulnerability is 9.8, indicating critical severity. Organizations using Issabel Framework should take immediate action to mitigate risks.
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