9.3

CVE-2026-56278

Flowise - Session Hijacking via Weak Default Express Session Secret

Flowise before 3.1.0 (affected versions 3.0.13 and earlier) uses a weak hardcoded default secret ('flowise') for the express-session middleware when the EXPRESS_SESSION_SECRET environment variable is not set (packages/server/src/enterprise/middleware/passport/index.ts). Because this default secret is publicly visible in the source code, an attacker can forge valid signed session cookies to impersonate any user and bypass authentication.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Flowiseai ≫ Flowise Version < 3.1.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.37% 0.292
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
disclosure@vulncheck.com 9.3 0 0
CVSS:4.0/AV:N/AC:L/AT:N/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
disclosure@vulncheck.com 9.1 3.9 5.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-798 Use of Hard-coded Credentials

The product contains hard-coded credentials, such as a password or cryptographic key.

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-2qqc-p94c-hxwh
Vendor Advisory
Mitigation
https://www.vulncheck.com/advisories/flowise-session-hijacking-via-weak-default-express-session-secret
Third Party Advisory