CVEs / CVE-2026-105134
CVE-2026-105134: Ahsay AhsayCBS Command Injection Vulnerability
- Known exploited in the CISA KEV catalog since 14 Oct 2026
- critical 10 CVSS 4.0 (from the CNA)
- EPSS 81.7% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
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.
Description
A flaw has been found in Ahsay AhsayCBS up to 9.15.2.69/10.3.4.44. This vulnerability affects unknown code of the file /rps/api/json/UpdateReceivers.do of the component Replication Receiver. Executing a manipulation of the argument random can lead to os command injection. It is possible to launch the attack remotely. The exploit has been published and may be used. Upgrading to version 9.15.2.70 and 10.3.4.45 is able to resolve this issue. Upgrading the affected component is advised. The initial patch did not fix the security vulnerability properly. An update of the CVE entry to reflect this became necessary.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Ahsay AhsayCBS | 9.15.2.0 | — |
| Ahsay AhsayCBS | 9.15.2.1 | — |
| Ahsay AhsayCBS | 9.15.2.2 | — |
| Ahsay AhsayCBS | 9.15.2.3 | — |
| Ahsay AhsayCBS | 9.15.2.4 | — |
| Ahsay AhsayCBS | 9.15.2.5 | — |
| Ahsay AhsayCBS | 9.15.2.6 | — |
| Ahsay AhsayCBS | 9.15.2.7 | — |
| Ahsay AhsayCBS | 9.15.2.8 | — |
| Ahsay AhsayCBS | 9.15.2.9 | — |
| Ahsay AhsayCBS | 9.15.2.10 | — |
| Ahsay AhsayCBS | 9.15.2.11 | — |
| Ahsay AhsayCBS | 9.15.2.12 | — |
| Ahsay AhsayCBS | 9.15.2.13 | — |
| Ahsay AhsayCBS | 9.15.2.14 | — |
| Ahsay AhsayCBS | 9.15.2.15 | — |
| Ahsay AhsayCBS | 9.15.2.16 | — |
| Ahsay AhsayCBS | 9.15.2.17 | — |
| Ahsay AhsayCBS | 9.15.2.18 | — |
| Ahsay AhsayCBS | 9.15.2.19 | — |
| Ahsay AhsayCBS | 9.15.2.20 | — |
| Ahsay AhsayCBS | 9.15.2.21 | — |
| Ahsay AhsayCBS | 9.15.2.22 | — |
| Ahsay AhsayCBS | 9.15.2.23 | — |
| Ahsay AhsayCBS | 9.15.2.24 | — |
| Ahsay AhsayCBS | 9.15.2.25 | — |
| Ahsay AhsayCBS | 9.15.2.26 | — |
| Ahsay AhsayCBS | 9.15.2.27 | — |
| Ahsay AhsayCBS | 9.15.2.28 | — |
| Ahsay AhsayCBS | 9.15.2.29 | — |
Exploitation
| In CISA KEV since | 14 Oct 2026 |
|---|---|
| Due date for US federal agencies | 17 Oct 2026 |
| Used in ransomware campaigns | Unknown |
| 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. |
Severity
| CVSS 4.0 | 10 criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XScored by the CNA ([email protected]) |
|---|---|
| Weakness | CWE-77, CWE-78 |
References
- CVE-2026-105134 on NVD
- CVE-2026-105134 in the CISA KEV catalog
- https://www.ahsay.com/en/company/announcements/patch-cve-105133-105134-update (cited by CISA)
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk (cited by CISA)
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk (cited by CISA)
- https://vuldb.com/cve/CVE-2026-105134 Third Party Advisory, VDB Entry
- https://vuldb.com/submit/942743 Third Party Advisory, VDB Entry
- https://vuldb.com/vuln/413351 Permissions Required, VDB Entry
- https://vuldb.com/vuln/413351/cti Permissions Required, VDB Entry
- https://www.ahsay.com/en/company/announcements/patch-cve-105133-105134-update Vendor Advisory
- https://www.huntress.com/blog/ahsaycbs-flaws-exploit Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-105134 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
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