CVE-2026-56278: Flowise uses a hardcoded default session secret enabling authentication bypass
Flowise
Flowise before version 3.1.0 utilizes a weak hardcoded default secret for session management, allowing attackers to forge session cookies and impersonate users. Users are advised to upgrade to the patched version.
disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why
- CVSS
- 9.3
- EPSS
- 0.01 · top 55% · 2026-11-13
- fix status
- Fix status unknown
- first report
- 30 Jun 2026
- last update
- 30 Jun 2026
- CVE ids
Timeline · 1
Sources · 1
Advisories and databases
- 2026-06-30CVE-2026-56278: Flowise before 3.1.0 (affected versions 3.0.13 and earlier) uses a weak hardcoded default secret ('flowise') for the…NVD · nvd.nist.gov/vuln/detail/CVE-2026-56278
Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.
Classification
- lane
- Patch now
- AI role
- Attack on AI
- categories
- Infrastructure vulnerability
- severity
- 2 · Disclosed vulnerability
- fix status
- Fix status unknown
- targets
- Framework / tooling
- owasp llm top 10
- LLM03:2025 Supply Chain
- mitre atlas
- no technique for these categories
- dates
- happened 30 Jun 2026 · first reported 30 Jun 2026
- origin
- NVDVulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
- record
- confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z
Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned
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# CVE-2026-56278: Flowise uses a hardcoded default session secret enabling authentication bypass
https://gcdradar.vercel.app/incidents/cve-2026-56278-flowise-uses-a-hardcoded-default-session-secr · AIR-2026-1138 · closed 2026-06-30
- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-06-30
- AI role: Attack on AI
- Products: Flowise
- CVE ids: CVE-2026-56278
- CVSS: 9.3
## Summary
Flowise before version 3.1.0 utilizes a weak hardcoded default secret for session management, allowing attackers to forge session cookies and impersonate users. Users are advised to upgrade to the patched version.
## What to do
No action recorded; read the sources below and the vendor's advisory.
## Latest updates
- 2026-06-30: CVE-2026-56278: Flowise before 3.1.0 (affected versions 3.0.13 and earlier) uses a weak hardcoded default secret ('flowise') for the… (https://nvd.nist.gov/vuln/detail/CVE-2026-56278)
## Sources
- 2026-06-30 NVD: CVE-2026-56278: Flowise before 3.1.0 (affected versions 3.0.13 and earlier) uses a weak hardcoded default secret ('flowise') for the… https://nvd.nist.gov/vuln/detail/CVE-2026-56278
Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.Related
- closed9.8Flowise Weak Hardcoded JWT Secrets in Flowise Authentication
Patch now · Disclosed · since 12 Jul 2026 · CVE-2026-56271
AI - closed6.5Flowise Path Traversal in Flowise Vector Store Implementations
Patch now · Disclosed · since 8 Jul 2026 · CVE-2026-56273
AI - closed6.9Flowise CVE-2026-56277: Flowise text-to-speech endpoint suffers from improper CORS configuration
Patch now · Disclosed · since 30 Jun 2026 · CVE-2026-56277
AI - closed5.0Flowise CVE-2026-58057: Flowise custom MCP stdio environment variable bypass leads to RCE
Patch now · Disclosed · since 28 Jun 2026 · CVE-2026-58057
AI - closed9.3Flowise Flowise Authentication Bypass Vulnerability CVE-2025-71327
Patch now · Disclosed · since 25 Jun 2026 · CVE-2025-71327
AI - closed10.0Flowise Flowise Path Traversal File Overwrite Vulnerability CVE-2025-71338
Patch now · Disclosed · since 25 Jun 2026 · CVE-2025-71338
AI