{"id":"CVE-2026-105134","published":"2026-10-04T07:16:33Z","modified":"2026-10-26T18:06:57Z","title":"Ahsay AhsayCBS Command Injection Vulnerability","vendor":"Ahsay","product":"AhsayCBS","tier":"core","eol":null,"description":{"text":"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.","provenance":"source","from":"NVD"},"summary":{"text":"AhsayCBS (up to 9.15.2.69 and 10.3.4.44) has a command injection flaw in the Replication Receiver component, specifically in the file /rps/api/json/UpdateReceivers.do, where the random argument is not properly neutralised before being passed to the operating system. An attacker with remote network access and no authentication or user interaction can manipulate that argument to execute arbitrary OS commands on the affected server.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:53:31Z"},"cvss":{"score":10.0,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.81763,"percentile":0.99644,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2026-10-14","dueDate":"2026-10-17","ransomware":false,"requiredAction":"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.","notes":"https://www.ahsay.com/en/company/announcements/patch-cve-105133-105134-update ; ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-105134","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-10-09","exploitedFirstSeen":"2026-10-09","ransomware":false,"evidence":[{"url":"https://www.huntress.com/blog/ahsaycbs-flaws-exploit","date":"2026-10-09"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2026-10-14"}],"evidenceTotal":2,"provenance":"source"},"exploited":true,"otx":{"pulseCount":25,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Technical Advisory: AhsayCBS Exploitation Chain (CVE-2026-105133, CVE-2026-105134).","url":"https://otx.alienvault.com/pulse/6ade1331bc5a7e0c8c6e771c","created":"2026-10-25"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"AhsayCBS Backup Console Under Active Exploitation: CVE-2026-105133/105134 Chain Leads From Auth Bypass to RCE, and 10.3.4.0 Does Not Close It .","url":"https://otx.alienvault.com/pulse/6ad75b2fdad28fe85e48ec5b","created":"2026-10-20"}],"provenance":"machine"},"cwes":[{"id":"CWE-77","name":"Improper Neutralization of Special Elements used in a Command"},{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"references":[{"url":"https://vuldb.com/cve/CVE-2026-105134","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://vuldb.com/submit/942743","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://vuldb.com/vuln/413351","tags":["Permissions Required","VDB Entry"]},{"url":"https://vuldb.com/vuln/413351/cti","tags":["Permissions Required","VDB Entry"]},{"url":"https://www.ahsay.com/en/company/announcements/patch-cve-105133-105134-update","tags":["Vendor Advisory"]},{"url":"https://www.huntress.com/blog/ahsaycbs-flaws-exploit","tags":["Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-105134","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Remote exploitation of public-facing web endpoint","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"It is possible to launch the attack remotely","start":273,"end":317}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: OS command injection yields command execution","mappingType":"primary_impact","evidence":[{"from":"description","quote":"Executing a manipulation of the argument random can lead to os command injection","start":191,"end":271}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-92078","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-92078","exploited":true,"exploitedSince":"2026-10-14","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2026-10-05","earliestUrl":"https://github.com/RayanAlmulhim/CVE-2026-105134-lab","repos":[{"name":"RayanAlmulhim/CVE-2026-105134-lab","url":"https://github.com/RayanAlmulhim/CVE-2026-105134-lab","stars":0,"created":"2026-10-05"}]},"nuclei":[{"id":"CVE-2026-105134","name":"AhsayCBS <= 10.3.4 - Unauthenticated RCE","severity":"critical","path":"http/cves/2026/CVE-2026-105134.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-105134.yaml"}],"first":{"date":"2026-10-05","source":"PoC-in-GitHub","url":"https://github.com/RayanAlmulhim/CVE-2026-105134-lab"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2026-10-04","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105134","provenance":"source"},{"date":"2026-10-05","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/RayanAlmulhim/CVE-2026-105134-lab","provenance":"source"},{"date":"2026-10-09","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.huntress.com/blog/ahsaycbs-flaws-exploit","provenance":"source"},{"date":"2026-10-14","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2026-10-14","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-92078","provenance":"source"}],"speed":{"daysToPublicExploit":1,"firstExploitFrom":"PoC-in-GitHub","daysToKev":10},"priority":{"score":79.9,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":10.0,"detail":"added 21 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.93,"detail":"percentile 0.9964"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 PoC-in-GitHub repo; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"25 pulses"},{"name":"CVSS severity","points":7.0,"detail":"base score 10.0"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}