Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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
Network-reachable with low complexity; PR:L because the attacker must already hold a valid session; high confidentiality and integrity over the account, no availability impact.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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
Lifecycle Timeline
3DescriptionCVE.org
Flowise before 3.0.10 (affected versions 3.0.7 and earlier) fails to invalidate existing sessions and session tokens after a user changes their password. An attacker who already holds an active session, for example via a stolen session token or a device left logged in, remains authenticated as the legitimate user even after the user rotates their credentials, undermining the security purpose of the password change.
AnalysisAI
Persistent session hijacking in Flowise 3.0.7 and earlier (fixed in 3.0.10) lets an attacker retain authenticated access to a victim's account even after the victim changes their password, because the application never invalidates pre-existing sessions or session tokens on credential rotation (CWE-613). Anyone holding a stolen token or a device left logged in keeps full access, defeating the primary remediation users rely on after a suspected compromise. A working proof-of-concept is published in the vendor's GHSA advisory; publicly available exploit code exists, but there is no public exploit identified as actively exploited in the wild and it is not on the CISA KEV list.
Technical ContextAI
Flowise is an open-source, low-code platform for building LLM/agent workflows, distributed via the npm package 'flowise' (CPE cpe:2.3:a:flowise:flowise) and offered as a cloud service at cloud.flowiseai.com. The flaw is an instance of CWE-613 (Insufficient Session Expiration): the session management layer issues session tokens that are not bound to the user's credential state, so the password-change routine updates the stored credential without iterating and revoking outstanding sessions. Because there is no server-side linkage between an active session and the current password hash, token validity persists independently of credential changes - the application trusts a previously issued token indefinitely until its own (unchanged) expiry. This is the classic gap the OWASP Session Management Cheat Sheet warns about: security-sensitive events (password change, reset, MFA enrollment) must trigger global session invalidation.
RemediationAI
Vendor-released patch: upgrade Flowise to version 3.0.10 or later (fix delivered via https://github.com/FlowiseAI/Flowise/pull/5294), which is the definitive fix and should be applied per the GHSA advisory at https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x7rp-qj2h-ghgw. Until the upgrade is deployed, compensating controls include forcing all users to re-authenticate by invalidating the server-side session store (for example, rotating the session signing secret / JWT secret so all existing tokens become invalid - side effect: every active user is logged out and must sign in again), and shortening session/token lifetime to reduce the window in which a stolen token remains usable (side effect: more frequent logins for legitimate users). For high-value or internet-exposed instances, restrict network access to the Flowise UI/API to trusted networks or behind a VPN/SSO reverse proxy that can enforce its own session revocation, so an upstream identity layer can terminate sessions on password change even though Flowise itself cannot. After any suspected credential compromise on an unpatched instance, treat a password change as insufficient and additionally rotate the session secret rather than relying on the password change alone.
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Same weakness CWE-613 – Insufficient Session Expiration
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External POC / Exploit Code
Leaving vuln.today
EUVD-2025-210341
GHSA-289x-5mj7-xhg5