CVE-2026-56278

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Source
https://cve.org/CVERecord?id=CVE-2026-56278
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56278.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-56278
Aliases
Published
2026-06-30T22:08:27.947Z
Modified
2026-07-15T01:48:59.520102899Z
Severity
  • 9.3 (Critical) CVSS_V4 - 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 CVSS Calculator
Summary
Flowise - Session Hijacking via Weak Default Express Session Secret
Details

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 EXPRESSSESSIONSECRET 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.

Database specific 
{
    "cwe_ids": [
        "CWE-798"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56278.json",
    "cna_assigner": "VulnCheck"
}
References

Affected packages

Git / github.com/flowiseai/flowise

Affected ranges

Type
GIT
Repo
https://github.com/flowiseai/flowise
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
378d3ec3bd2d4157d6aa694bbc5ffa50c4159b97
Database specific 
{
    "cpe": "cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.1.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ]
}

Affected versions

flowise-components@1.*
flowise-components@1.0.0
flowise-components@1.1.0
flowise-components@1.1.1
flowise-components@1.2.1
flowise-components@1.2.10
flowise-components@1.2.12
flowise-components@1.2.14
flowise-components@1.2.15
flowise-components@1.2.16
flowise-components@1.2.17
flowise-components@1.2.2
flowise-components@1.2.3
flowise-components@1.2.4
flowise-components@1.2.5
flowise-components@1.2.6
flowise-components@1.2.7
flowise-components@1.2.8
flowise-components@1.2.9
flowise-components@1.3.0
flowise-components@1.3.1
flowise-components@1.3.10
flowise-components@1.3.11
flowise-components@1.3.2
flowise-components@1.3.3
flowise-components@1.3.4
flowise-components@1.3.5
flowise-components@1.3.7
flowise-components@1.3.8
flowise-components@1.3.9
flowise-components@1.4.0
flowise-components@1.4.1
flowise-components@1.4.2
flowise-components@1.4.6
flowise-components@1.4.7
flowise-components@1.4.8
flowise-components@1.4.9
flowise-components@1.5.0
flowise-components@1.5.1
flowise-components@1.5.2
flowise-components@1.5.3
flowise-components@1.6.0
flowise-components@1.6.1
flowise-components@1.6.2
flowise-components@1.6.3
flowise-components@1.6.4
flowise-components@1.6.5
flowise-components@1.6.6
flowise-components@1.6.7
flowise-components@1.6.8
flowise-components@1.7.0
flowise-components@1.7.1
flowise-components@1.7.2
flowise-components@1.8.0
flowise-components@1.8.1
flowise-components@1.8.3
flowise-components@1.8.4
flowise-components@1.8.6
flowise-components@2.*
flowise-components@2.0.2
flowise-components@2.0.3
flowise-components@2.0.4
flowise-components@2.0.5
flowise-components@2.0.6
flowise-components@2.0.7
flowise-components@2.1.0
flowise-components@2.1.1
flowise-components@2.1.2
flowise-components@2.1.3
flowise-components@2.1.4
flowise-components@2.1.5
flowise-components@2.2.0
flowise-components@2.2.1
flowise-components@2.2.2
flowise-components@2.2.3
flowise-components@2.2.4
flowise-components@2.2.5
flowise-components@2.2.6
flowise-components@2.2.7
flowise-components@2.2.7-patch.1
flowise-components@2.2.8
flowise-components@3.*
flowise-components@3.0.0
flowise-components@3.0.1
flowise-components@3.0.10
flowise-components@3.0.11
flowise-components@3.0.12
flowise-components@3.0.13
flowise-components@3.0.2
flowise-components@3.0.3
flowise-components@3.0.4
flowise-components@3.0.5
flowise-components@3.0.6
flowise-components@3.0.7
flowise-components@3.0.8
flowise-components@3.0.9
flowise-ui@1.*
flowise-ui@1.0.0
flowise-ui@1.1.0
flowise-ui@1.2.0
flowise-ui@1.2.1
flowise-ui@1.2.10
flowise-ui@1.2.12
flowise-ui@1.2.13
flowise-ui@1.2.14
flowise-ui@1.2.15
flowise-ui@1.2.2
flowise-ui@1.2.3
flowise-ui@1.2.4
flowise-ui@1.2.5
flowise-ui@1.2.6
flowise-ui@1.2.7
flowise-ui@1.3.0
flowise-ui@1.3.1
flowise-ui@1.3.2
flowise-ui@1.3.3
flowise-ui@1.3.4
flowise-ui@1.3.5
flowise-ui@1.3.6
flowise-ui@1.3.7
flowise-ui@1.4.0
flowise-ui@1.4.2
flowise-ui@1.4.3
flowise-ui@1.4.4
flowise-ui@1.4.5
flowise-ui@1.4.6
flowise-ui@1.4.7
flowise-ui@1.4.8
flowise-ui@1.4.9
flowise-ui@1.5.0
flowise-ui@1.5.1
flowise-ui@1.6.0
flowise-ui@1.6.1
flowise-ui@1.6.2
flowise-ui@1.6.3
flowise-ui@1.6.4
flowise-ui@1.6.5
flowise-ui@1.6.6
flowise-ui@1.7.0
flowise-ui@1.7.1
flowise-ui@1.7.2
flowise-ui@1.8.0
flowise-ui@1.8.1
flowise-ui@1.8.2
flowise-ui@1.8.3
flowise-ui@1.8.4
flowise-ui@2.*
flowise-ui@2.0.2
flowise-ui@2.0.3
flowise-ui@2.0.4
flowise-ui@2.0.5
flowise-ui@2.0.6
flowise-ui@2.0.7
flowise-ui@2.1.0
flowise-ui@2.1.1
flowise-ui@2.1.2
flowise-ui@2.1.3
flowise-ui@2.1.4
flowise-ui@2.1.5
flowise-ui@2.2.0
flowise-ui@2.2.1
flowise-ui@2.2.2
flowise-ui@2.2.3
flowise-ui@2.2.4
flowise-ui@2.2.5
flowise-ui@2.2.6
flowise-ui@2.2.7
flowise-ui@2.2.7-patch.1
flowise-ui@2.2.8
flowise-ui@3.*
flowise-ui@3.0.0
flowise-ui@3.0.1
flowise-ui@3.0.10
flowise-ui@3.0.11
flowise-ui@3.0.12
flowise-ui@3.0.13
flowise-ui@3.0.2
flowise-ui@3.0.3
flowise-ui@3.0.4
flowise-ui@3.0.5
flowise-ui@3.0.6
flowise-ui@3.0.7
flowise-ui@3.0.8
flowise-ui@3.0.9
flowise@1.*
flowise@1.0.0
flowise@1.0.1
flowise@1.1.0
flowise@1.1.1
flowise@1.2.1
flowise@1.2.11
flowise@1.2.13
flowise@1.2.14
flowise@1.2.15
flowise@1.2.16
flowise@1.2.2
flowise@1.2.3
flowise@1.2.4
flowise@1.2.5
flowise@1.2.6
flowise@1.2.7
flowise@1.2.8
flowise@1.2.9
flowise@1.3.0
flowise@1.3.1
flowise@1.3.2
flowise@1.3.3
flowise@1.3.4
flowise@1.3.5
flowise@1.3.6
flowise@1.3.7
flowise@1.3.8
flowise@1.3.9
flowise@1.4.0
flowise@1.4.1
flowise@1.4.10
flowise@1.4.11
flowise@1.4.12
flowise@1.4.2
flowise@1.4.4
flowise@1.4.5
flowise@1.4.6
flowise@1.4.7
flowise@1.4.8
flowise@1.4.9
flowise@1.5.0
flowise@1.5.1
flowise@1.6.0
flowise@1.6.1
flowise@1.6.2
flowise@1.6.3
flowise@1.6.4
flowise@1.6.5
flowise@1.6.6
flowise@1.7.0
flowise@1.7.1
flowise@1.7.2
flowise@1.8.0
flowise@1.8.1
flowise@1.8.2
flowise@1.8.3
flowise@1.8.4
flowise@2.*
flowise@2.0.2
flowise@2.0.3
flowise@2.0.4
flowise@2.0.5
flowise@2.0.6
flowise@2.0.7
flowise@2.1.0
flowise@2.1.1
flowise@2.1.2
flowise@2.1.3
flowise@2.1.4
flowise@2.1.5
flowise@2.2.0
flowise@2.2.1
flowise@2.2.2
flowise@2.2.3
flowise@2.2.4
flowise@2.2.5
flowise@2.2.6
flowise@2.2.6-hotfix.1
flowise@2.2.7
flowise@2.2.7-patch.1
flowise@2.2.8
flowise@3.*
flowise@3.0.0
flowise@3.0.1
flowise@3.0.10
flowise@3.0.11
flowise@3.0.12
flowise@3.0.13
flowise@3.0.2
flowise@3.0.3
flowise@3.0.4
flowise@3.0.5
flowise@3.0.6
flowise@3.0.7
flowise@3.0.8
flowise@3.0.9
Other
pre-langchain-v1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56278.json"