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CVE-2026-105133 CISA KEV · Actively exploitedSuited to automated attack · CISA

Ahsay AhsayCBS API ApiStructsAction.java checkSysPwd improper authentication

CVSS score

6.9

EPSS probability

%0.9

Risk score

0.1

Published

15 d ago

Related Security News

Articles and analysis bulletins in which the press and security publications have covered this vulnerability:

The Hacker News15.10.2026

AhsayCBS Flaws Exploited to Deploy Web Shells Get New Fixes After Incomplete Patches

Singapore-based Ahsay Backup has released security updates to address two security flaws in AhsayCBS that have been exploited by bad actors to drop web shells and XMRig cryptocurrency miners. The vulnerabilities in question are CVE-2026-105133 and CVE-2026-105134, which could be chained to sidestep authentication and execute arbitrary commands on affected systems. In a report published earlier

Security.NL14.10.2026

Ahsay komt met update voor actief misbruikt lek in Cloud Backup Server

Softwareontwikkelaar Ashay heeft een hotfix uitgebracht voor een kwetsbaarheid waar aanvallers al zeker sinds 4 oktober ...

The Hacker News12.10.2026

⚡ Weekly Recap: Helpdesk 0-Days, Rogue Certs, ShinyHunters Arrest, AI-Fooling Malware and More

Some meetings last longer than it took attackers to jump on a newly disclosed security flaw this week. Within hours, they were already testing it. That's not much time to read the warning, let alone do something about it. But speed is only part of the problem. A secure connection didn't always mean a safe destination. People offering to fix a ransomware mess had questions to answer themselves.

The Hacker News09.10.2026

Attackers Exploit AhsayCBS Flaws to Deploy XMRig Miners Disguised as Microsoft Edge

Threat actors have been observed exploiting two recently disclosed flaws in the AhsayCBS backup utility to seize control of affected devices and deploy web shells and XMRig cryptocurrency miners. Details of the flaws are below - CVE-2026-105133 (CVSS v4 score: 5.5) - An improper authentication vulnerability in the checkSysPwd() function in the "com/ahsay/obs/api/ApiStructsAction.java"

Security.NL09.10.2026

Organisaties gehackt via kritiek lek in Ahsay Cloud Backup Server

Aanvallers maken actief misbruik van twee kwetsbaarheden in Ahsay Cloud Backup Server (CBS) voor het hacken van organisaties en ...

SecurityWeek09.10.2026

Unpatched AhsayCBS Vulnerabilities Exploited in the Wild

The flaws, CVE-2026-105133 and CVE-2026-105134, allow attackers to bypass authentication and inject OS commands. The post Unpatched AhsayCBS Vulnerabilities Exploited in the Wild appeared first on SecurityWeek.

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curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-105133"