CVE-2026-81826

CriticalCVSS 9.1/10Last modified Aug 28, 2026

Description

Affected versions of Flowintel do not revoke existing authenticated sessions when a user’s password is changed.

This means that if an attacker already possesses a valid session—for example, from prior access or a stolen session token—the victim changing their password does not terminate that attacker’s access. The session remains usable until it expires naturally. The upstream commit describes this directly as:

“session keeps working until it expires.”

The fix detects password changes and explicitly invokes _invalidate_user_sessions(user.id) after the database update. This is applied in both edit_user_core() and admin_edit_user_core().

Version impacted >=3.3.0

Metrics

CVSS 4.0 9.1/10CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Aug 27, 2026
Last modified
Aug 28, 2026
NVD status
Deferred

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CVE-2026-81826: Critical severity, CVSS 9.1 | Vulnix