CVE-2026-56774

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Source
https://cve.org/CVERecord?id=CVE-2026-56774
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56774.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-56774
Published
2026-06-25T18:10:22Z
Modified
2026-10-28T02:30:21Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Kanboard - Cross-User Deletion of Persistent Login Sessions via Unvalidated Session ID
Details

Kanboard through 1.2.52, fixed in commit 928c68a, UserViewController::removeSession fails to validate the session id parameter before passing it to RememberMeSessionModel::remove, allowing authenticated users to delete other users' Remember Me sessions. Attackers can enumerate sequential session IDs and mass-invalidate persistent login sessions of any user, including administrators, forcing re-authentication and causing denial of service.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-639"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56774.json"
}
References

Affected packages

Git / github.com/kanboard/kanboard

Affected ranges

Type
GIT
Repo
https://github.com/kanboard/kanboard
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
928c68aa2b7c00092dd71084d329b912e229f3d1
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "1.2.52"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "fixed":  "928c68aa2b7c00092dd71084d329b912e229f3d1"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

v1.*
v1.0.0
v1.0.1
v1.0.10
v1.0.11
v1.0.12
v1.0.13
v1.0.14
v1.0.15
v1.0.16
v1.0.17
v1.0.18
v1.0.19
v1.0.2
v1.0.20
v1.0.26
v1.0.27
v1.0.28
v1.0.29
v1.0.3
v1.0.30
v1.0.31
v1.0.32
v1.0.33
v1.0.34
v1.0.35
v1.0.36
v1.0.37
v1.0.38
v1.0.39
v1.0.4
v1.0.40
v1.0.41
v1.0.42
v1.0.43
v1.0.44
v1.0.45
v1.0.46
v1.0.48
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.1.0
v1.1.1
v1.2.0
v1.2.1
v1.2.10
v1.2.11
v1.2.12
v1.2.13
v1.2.14
v1.2.15
v1.2.16
v1.2.17
v1.2.18
v1.2.19
v1.2.2
v1.2.20
v1.2.21
v1.2.22
v1.2.23
v1.2.24
v1.2.25
v1.2.26
v1.2.27
v1.2.28
v1.2.29
v1.2.3
v1.2.30
v1.2.31
v1.2.32
v1.2.33
v1.2.34
v1.2.35
v1.2.36
v1.2.37
v1.2.38
v1.2.39
v1.2.4
v1.2.40
v1.2.41
v1.2.42
v1.2.43
v1.2.44
v1.2.45
v1.2.46
v1.2.47
v1.2.49
v1.2.5
v1.2.50
v1.2.51
v1.2.52
v1.2.6
v1.2.7
v1.2.8
v1.2.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56774.json"