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Horizon3.ai disclosed a cryptographic weakness in Rejetto HFS that can allow an attacker to forge administrator sessions. The issue was identified with assistance from Anthropic’s Mythos, according to the disclosure and subsequent reporting.
An attacker with a forged administrative session could leverage the elevated access to achieve remote code execution on the affected HFS service. No CVE identifier, affected-version range, root-cause details, patch information, exploit prerequisites, or evidence of active exploitation was provided; organizations running Rejetto HFS should monitor vendor and researcher guidance and restrict exposure of HFS instances pending remediation details.
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Horizon3.ai reported that Anthropic's Mythos helped identify a cryptographic flaw in Rejetto HFS that could permit forged administrator sessions. The report stated that forged administrative access could be leveraged for remote code execution on the affected HFS service.
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A critical vulnerability tracked as **`CVE-2026-61500`** affects **Rejetto HFS** versions **3.0.0 through 3.2.0**, allowing unauthenticated attackers to forge administrator session cookies. The flaw stems from HFS deriving its session-cookie signing key from JavaScript's non-cryptographic **`Math.random()`** generator while also exposing outputs from that same generator during login, giving remote attackers enough information to reconstruct the generator state and recover the signing key.
Jul 14, 2026
A high-severity vulnerability in **HestiaCP**, tracked as `CVE-2026-12196`, allows a low-privileged user to take over administrator accounts by abusing the control panel's **panel cron job** feature. The flaw stems from broken authorization in cron job handling, where an undefined variable in an access-control check lets unauthorized users modify privileged jobs; the issue is compounded by missing CSRF token validation. Security reporting says the bug is remotely exploitable and carries a **CVSS 4.0 score of 8.3**. By altering a privileged cron job, an attacker can trigger HestiaCP management scripts that run with **passwordless `sudo`**, including scheduling commands to reset the admin password. Researchers said successful exploitation can lead to full administrator takeover within the application and compromise of the underlying web server, amounting to effective **remote code execution**. A manual fix was published in **GitHub pull request `#5440`**, while reports indicated a formal HestiaCP release had not yet been issued at the time of disclosure.
Jul 5, 2026
Attackers are actively exploiting a critical cryptographic vulnerability in Gladinet's CentreStack and Triofox products, which are used for secure remote file access and sharing. The flaw stems from the use of hard-coded cryptographic keys within the `GladCtrl64.dll` component, allowing threat actors to decrypt or forge access tickets and gain unauthorized access to sensitive files, including `web.config`. This access can be leveraged to obtain machine keys and achieve remote code execution via ViewState deserialization. Security researchers from Huntress have observed at least nine organizations targeted by these attacks, with exploitation occurring in the wild and Gladinet issuing advisories and updates to mitigate the risk. The vulnerability is rooted in a custom implementation of the AES algorithm, where static 100-byte strings are used to derive encryption keys and initialization vectors, making them identical across all installations. Attackers can craft malicious requests to the `/storage/filesvr.dn` endpoint, bypassing authentication and impersonating users. Gladinet has provided indicators of compromise (IoCs) and urged customers to update to the latest versions released on November 29. The attacks highlight the risks of insecure cryptographic practices and the importance of timely patching in enterprise environments.
Jun 29, 2026