CVE-2026-105133
MEDIUM 6.9 KNOWN EXPLOITED PoC CATALOGUED DETECTION TEMPLATEA vulnerability was detected in Ahsay AhsayCBS up to 10.3.2. This affects the function checkSysPwd of the file com/ahsay/obs/api/ApiStructsAction.java of the component API. Performing a manipulation of the argument random results in improper authentication. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 10.3.4 is able to mitigate this issue. It is recommended to upgrade the affected component.
Confirmed exploited in the wild — in CISA KEV since 2026-10-14. Patch or mitigate now.
Exploitation likelihood
79.2%chance of exploitation in 30 days · 100th percentile
Impact if exploited
6.9CVSS 4.0 · MEDIUM
- ConfidentialityLow
- IntegrityLow
- AvailabilityLow
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ✓Privileges: No account or privileges required
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
Public PoC or exploit resources are catalogued below.
Listed by the named source; Vulnpedia has not tested these resources.
PoC data: JSON
Detection templates
Detection checks are listed separately from PoCs.
Resource commands
nuclei -id CVE-2026-105133 -u https://TARGETDetection template — review its checks and affected versions before use.curl -s https://vulnpedia.com/cve/CVE-2026-105133/poc.jsonMachine-readable PoC index for this CVE (for automation).Search for new PoCs
Search GitHub now — results may be empty or unverified.
Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.
Data snapshot:
Weakness (CWE)
- CWE-287: Improper Authentication
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
References and research data (JSON)
Unverified PoC candidates
Catalogue matches for further research. These repositories have not been validated as working exploits.
1 candidate
- https://github.com/horizon3ai/AhsayCBS-Auth-Bypass-RCE
A proof of concept exploit for CVE-2026-105133 and CVE-2026-105134 affecting AhsayCBS
PoC-in-GitHub · CVE-2026-105133
PoC-in-GitHub · CVE-2026-105133 · Updated 2026-10-17T05:21:28Z
Additional exploitation reports
Source-specific reports, separate from CISA KEV. Repeated observations from one source are not independent confirmations.
- VulnCheck KEV · 2026-10-09T00:00:00Z
Source guidance: 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.
Source ransomware assessment: Unknown
VulnCheck KEV · CVE-2026-105133 · Updated 2026-10-09T00:00:00Z - VulnCheck KEV · 2026-10-09T00:00:00ZVulnCheck KEV · CVE-2026-105133
- VulnCheck KEV · 2026-10-14T00:00:00ZVulnCheck KEV · CVE-2026-105133
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Ahsay | Cloud Backup Suite | < 10.3.4 |
All CVSS metrics
- MEDIUM 6.9 v4.0 · CNA Primary
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P - HIGH 7.3 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C - HIGH 7.3 v3.0 · CNA Primary
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C - HIGH 7.5 v2.0 · CNA Primary
AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C - MEDIUM 5.5 v4.0 · NVD Secondary
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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:X - HIGH 7.3 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - HIGH 7.5 v2.0 · NVD Secondary
AV:N/AC:L/Au:N/C:P/I:P/A:P
References
Patches & mitigations
- https://www.ahsay.com/en/support/help-centre/release-notes/cbs/v10.3.4 CVE record · VulDB · Updated 2026-10-04T05:15:14.561Z
NVD · CVE-2026-105133 · Updated 2026-10-15T13:47:06.283
Advisories
- https://vuldb.com/vuln/413350 CVE record · VulDB · Updated 2026-10-04T05:15:14.561Z
NVD · CVE-2026-105133 · Updated 2026-10-15T13:47:06.283 - https://vuldb.com/cve/CVE-2026-105133 CVE record · VulDB · Updated 2026-10-04T05:15:14.561Z
NVD · CVE-2026-105133 · Updated 2026-10-15T13:47:06.283 - https://vuldb.com/submit/942688 CVE record · VulDB · Updated 2026-10-04T05:15:14.561Z
NVD · CVE-2026-105133 · Updated 2026-10-15T13:47:06.283 - https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-105133 CVE record · CISA-ADP · Updated 2026-10-15T03:57:04.527Z
NVD · CVE-2026-105133 · Updated 2026-10-15T13:47:06.283 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-92079 EUVD · EUVD-2026-92079
- https://vulncheck.com/kev VulnCheck KEV · CVE-2026-105133 · Updated 2026-10-09T00:00:00Z
Technical & other
- https://vuldb.com/vuln/413350/cti CVE record · VulDB · Updated 2026-10-04T05:15:14.561Z
NVD · CVE-2026-105133 · Updated 2026-10-15T13:47:06.283 - https://www.huntress.com/blog/ahsaycbs-flaws-exploit VulnCheck KEV · CVE-2026-105133 · Updated 2026-10-09T00:00:00Z
- https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json VulnCheck KEV · CVE-2026-105133 · Updated 2026-10-09T00:00:00Z
- https://vulncheck.com/xdb/c285e90c8731 VulnCheck KEV · c285e90c8731 · Updated 2026-10-09T00:00:00Z
- https://github.com/horizon3ai/AhsayCBS-Auth-Bypass-RCE VulnCheck KEV · c285e90c8731 · Updated 2026-10-09T00:00:00Z