CVE-2026-0696: Session Cookies Missing HttpOnly Attribute

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-16 · updated 2026-06-17
Weakness: CWE-1004

Description

In ConnectWise PSA versions older than 2026.1, certain session cookies were not set with the HttpOnly attribute. In some scenarios, this could allow client-side scripts access to session cookie values.

Affected products

ConnectWise Professional Service Automation: before 2026.1 — fixed in 2026.1

How to fix

Upgrade to a fixed version: ConnectWise Professional Service Automation 2026.1. Check the vendor advisory for mitigations.

References

https://www.connectwise.com/company/trust/security-bulletins/2026-01-15-psa-security-fix
https://www.themissinglink.com.au/security-advisories/cve-2026-0696

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