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CVE-2026-105133

A vulnerability was detected in Ahsay AhsayCBS up to 9.15.2.69/10.3.4.44.

Medium Known exploited
Severity
6.9 / 10
Medium · CVSS 4.0
Exploit chance (EPSS)
79.47%
Chance of exploitation in the next 30 days. Higher than 99.60% of scored vulnerabilities.
Known exploited
Yes
In CISA's catalog since Oct 14, 2026
Weakness
CWE-287 Improper Authentication
Fix
None yet
No fixed version published
Exploited in the wild. Ahsay AhsayCBS Improper Authentication Vulnerability (Ahsay AhsayCBS). 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. Due for U.S. federal agencies by Oct 17, 2026.

Description

A vulnerability was detected in Ahsay AhsayCBS up to 9.15.2.69/10.3.4.44. 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 9.15.2.70 and 10.3.4.45 is able to mitigate this issue. It is recommended to upgrade the affected component. The initial patch did not fix the security vulnerability properly. An update of the CVE entry to reflect this became necessary.

How to fix

No fixed version has been published yet. Until one is, remove or replace the package, or turn off or isolate the affected feature. This page updates when a fix ships.

Severity breakdown

CVSS 4.0 6.9

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: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:X

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
None
User interaction
None
Confidentiality (vulnerable system)
Low
Integrity (vulnerable system)
Low
Availability (vulnerable system)
Low
Confidentiality (subsequent systems)
None
Integrity (subsequent systems)
None
Availability (subsequent systems)
None
Exploit maturity
Attacked
Scope
X

CVSS 3.1 7.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Weakness

CWE-287: Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

How to prevent it
  • Architecture and Design: Use an authentication framework or library such as the OWASP ESAPI Authentication feature.

References

Timeline

  1. Published
  2. Added to CISA's Known Exploited Vulnerabilities catalog
  3. Remediation due for U.S. federal agencies
  4. Last updated by the source
  5. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-f9x3-7vq9-cph6
Laravel TokenGuard authentication bypass through non-string API credentials
Critical Same weakness, CWE-287
GHSA-r4xp-prcw-77qf
better-auth: OAuth Proxy lets an attacker sign in as another user
Critical Same weakness, CWE-287
GHSA-965c-763c-88jm
better-auth: OAuth state can be used as a Magic Link to sign in as another user
Critical Same weakness, CWE-287
GO-2026-6773
Nginx UI: Casdoor SSO callback uses a constant `state` parameter (login CSRF)
High Same weakness, CWE-287
GO-2026-6786
Nginx UI: TOTP / passkey enrolment requires no re-authentication, enabling persistent account takeover
High Same weakness, CWE-287
GHSA-xv7q-fvmc-jx96
Vikunja: OIDC email-fallback account linking ignores email_verified, enabling local-account takeover
High Same weakness, CWE-287
GHSA-68w4-83fh-f2w8
pyload-ng: getUserData/get_userdata exposed at Perms.ANY allow any authenticated account to brute-force the administrator password
High Same weakness, CWE-287
GHSA-r44w-v6gf-x3p6
pyLoad has an authentication bypass in API key validation (check_apikey cache)
High Same weakness, CWE-287
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