Live › vulnerability › CVE-2026-105134
Go to dashboardAhsayCBS (self-hosted backup server) has an OS command injection in the Replication Receiver endpoint /rps/api/json/UpdateReceivers.do (random parameter). It is chained with auth bypass CVE-2026-105133 for unauthenticated RCE (SYSTEM on Windows). Exploited since 2026-10-07 (Huntress): JSP webshells, XMRig miner, a MicrosoftEdgeUpdateSvc service for persistence. CISA KEV added it 2026-10-14. Ahsay's first patches (10.3.4.0, 9.15.2.59) did not fully fix it. Hotfixes are partner-portal only.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Ahsay AhsayCBS | vendor | – | – |
| Ahsay AhsayCBS v10 | vendor | <= 10.3.4.0 (below hotfix 10.3.4.45) | 10.3.4.45 |
| Ahsay AhsayCBS v7-v9 | vendor | v7, v8, v9 below hotfix 9.15.2.70 (including 9.15.2.59) | 9.15.2.70 |
| ahsay cloud backup suite | vendor | < 10.3.4 |
| 10.3.4 |
10.3.4.45 (including 10.3.4.0), or v7/v8/v9 is below hotfix 9.15.2.70 (including 9.15.2.59)v10.3.4.45 (v10) or v9.15.2.70 (v7-v9; v7/v8 must first upgrade to 9.15.0.0), then reboot9.15.0.0 or 10.3.4.0 plus the matching hotfix, and restore config from an Auto Save that predates the compromiseEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
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Ahsay AhsayCBS contains a command injection vulnerability that could allow a remote attacker to execute operating system commands via manipulation of the random parameter in the Replication Receiver component’s /rps/api/json/UpdateReceivers.do endpoint. This vulnerability can be chained with CVE-2026-105133.
CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
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