CVE-2026-11596: ConnectWise ScreenConnect improper input validation in Host Pass creation

CVE-2026-11596 · Severity: medium · CVSS 4.7 · Published 2026-06-10

ConnectWise ScreenConnect is a remote support and access platform used by IT professionals to manage devices. A vulnerability in the 'Host Pass' feature allows authorized users to create access tokens that last longer than the company's security policies should allow. This could result in persistent, unauthorized access to remote systems if a temporary access token does not expire when expected.

Technologies: ConnectWise ScreenConnect. Vendors: ConnectWise.

Quick answers

Is CVE-2026-11596 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-11596 being exploited in the wild.
How severe is CVE-2026-11596?
Medium severity, with a CVSS score of 4.7, published 10 June 2026.
Which products and versions are affected?
ConnectWise ScreenConnect prior to 26.2.
Is there a fix for CVE-2026-11596?
A patch was published on 2026-04-29: Version 26.2 released to address the issue. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-11596 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-11596?
Check whether you run ConnectWise ScreenConnect 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.

Technical details

An improper validation of specified quantity (CWE-1284) exists in the Host Pass creation functionality of ConnectWise ScreenConnect. Authenticated users with Host Pass creation privileges can bypass server-side validation to specify a token expiration duration that exceeds the intended maximum limit. This allows for the generation of delegated access tokens with an extended lifetime, potentially granting prolonged access to remote hosts beyond administrative intent. The vulnerability is reachable over the network but requires high privileges (PR:H) to exploit. The issue is resolved in version 26.2.

Affected products

  • ConnectWise ScreenConnect prior to 26.2

Timeline

  • 2026-04-29: patched: Version 26.2 released to address the issue.
  • 2026-06-10: disclosed: Public advisory and CVE assignment.

References

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