Is CVE-2026-105133 exploited in the wild?

Yes. CVE-2026-105133 is known to be exploited in the wild, first recorded on 14 October 2026. Treat it as urgent.

How severe is CVE-2026-105133?

Critical severity, with a CVSS score of 7.3, published 4 October 2026.

Is there a fix for CVE-2026-105133?

Yes: fixed in 10.3.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-105133 attacked?

It is attacked over the network.

Am I affected by CVE-2026-105133?

Check whether you run AhsayCBS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-105133: Ahsay AhsayCBS authentication bypass in API

CVE-2026-105133 · Severity: critical · CVSS 7.3 · Exploited in the wild · Published 2026-10-04

Ahsay AhsayCBS is a cloud backup and archival platform used by enterprises to protect data. A vulnerability in its API authentication function allows remote attackers to bypass authentication by manipulating a random parameter, potentially gaining unauthorized access to backup systems and stored data without valid credentials.

Quick answers

Is CVE-2026-105133 exploited in the wild?: Yes. CVE-2026-105133 is known to be exploited in the wild, first recorded on 14 October 2026. Treat it as urgent.
How severe is CVE-2026-105133?: Critical severity, with a CVSS score of 7.3, published 4 October 2026.
Which products and versions are affected?: AhsayCBS up to 10.3.2.
Is there a fix for CVE-2026-105133?: Yes: fixed in 10.3.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-105133 attacked?: It is attacked over the network.
Am I affected by CVE-2026-105133?: Check whether you run AhsayCBS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 10.3.4

Technical details

The checkSysPwd function in the API component (com/ahsay/obs/api/ApiStructsAction.java) improperly validates the random parameter during authentication, allowing attackers to bypass access controls remotely. No authentication or user interaction is required to exploit this issue. The vulnerability has a public exploit available.

Affected products

Ahsay AhsayCBS up to 10.3.2

Timeline

2026-10-04: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.