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PatchSiren cyber security CVE debrief

CVE-2026-11596 ConnectWise CVE debrief

CVE-2026-11596 is a medium-severity vulnerability in ScreenConnect versions prior to 26.2. The issue lies in the input validation within the Host Pass creation functionality, which could allow an authenticated user with Host Pass creation privileges to specify a token expiration duration beyond the intended maximum when generating delegated access tokens. This vulnerability has a CVSS score of 4.7 and is classified as CWE-1284.

Vendor
ConnectWise
Product
ScreenConnect
CVSS
MEDIUM 4.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-10
Original CVE updated
2026-08-18
Advisory published
2026-06-10
Advisory updated
2026-08-18

Who should care

Users of ScreenConnect versions prior to 26.2 should be aware of this vulnerability and take necessary actions to mitigate the risk.

Technical summary

The vulnerability exists in the Host Pass creation functionality of ScreenConnect versions prior to 26.2. An authenticated user with Host Pass creation privileges can specify a token expiration duration beyond the intended maximum, potentially leading to security issues.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update ScreenConnect to version 26.2 or later.
  • Restrict Host Pass creation privileges to authorized users.
  • Monitor token expiration durations for unusual activity.

Evidence notes

The CVE record and NVD detail can be found at [cve-org] and [nvd], respectively. Additional information is available at [ref-4].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11596 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11596

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11596 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11596

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://github.com/ConnectWise-Advisories/Disclosures/tree/main/CVE-2026-11596

    7d616e1a-3288-43b1-a0dd-0a65d3e70a49

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.