CVE-2026-61500

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

September 30, 2026

Last Seen

October 3, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Critical Authentication Bypass in Rejetto HFS Exploited Within 24 Hours80.0

Anthropic's Mythos model identified a critical authentication bypass in Rejetto HTTP File Server (HFS), tracked as CVE-2026-61500, allowing remote code execution. Discovered by Horizon3 researcher Zach Hanley, the flaw was revealed on September 27, 2026, and exploitation began within 24 hours, with...