CVE-2026-91851

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-91851
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91851.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-91851
Published
2026-09-15T08:50:01Z
Modified
2026-10-28T02:30:34Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
MISP Dashboard Template ACL Bypass Due to VARCHAR-to-Integer Type Coercion in Permission Flag Comparison
Details

Affected versions of MISP incorrectly filter dashboard templates that are restricted to a specific permission flag.

DashboardsController::listTemplates() allowed a template when either:

 - its restrict_to_permission_flag matched one of the current user’s permission flags, or

 - restrict_to_permission_flag equaled integer 0

However, restrict_to_permission_flag is a varchar. MySQL therefore performed numeric coercion when comparing the column against integer 0. Strings such as perm_site_admin convert numerically to zero, making expressions such as perm_site_admin = 0 evaluate true and causing the “unrestricted” branch to match permission-restricted templates as well.

Version affected: ≤2.5.45

Database specific 
{
    "cna_assigner":  "CIRCL",
    "cwe_ids":  [
        "CWE-697",
        "CWE-863"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91851.json"
}
References

Affected packages

Git / github.com/misp/misp

Affected ranges

Type
GIT
Repo
https://github.com/misp/misp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
20f72101371d18afc5578d52e1543de1a19ef219
Fixed
245b8d63a
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.5.46"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "fixed":  "245b8d63a"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

Other
codename/tellurium
rm
v0.*
v0.2
v2.*
v2.3.0
v2.4.0
v2.4.1
v2.4.10
v2.4.100
v2.4.101
v2.4.102
v2.4.106
v2.4.107
v2.4.109
v2.4.11
v2.4.110
v2.4.111
v2.4.118
v2.4.120
v2.4.121
v2.4.122
v2.4.123
v2.4.125
v2.4.127
v2.4.128
v2.4.13
v2.4.130
v2.4.133
v2.4.134
v2.4.136
v2.4.137
v2.4.14
v2.4.15
v2.4.152
v2.4.153
v2.4.16
v2.4.17
v2.4.175
v2.4.18
v2.4.183
v2.4.184
v2.4.185
v2.4.186
v2.4.187
v2.4.188
v2.4.189
v2.4.190
v2.4.191
v2.4.192
v2.4.193
v2.4.194
v2.4.195
v2.4.196
v2.4.2
v2.4.20
v2.4.21
v2.4.22
v2.4.23
v2.4.24
v2.4.25
v2.4.26
v2.4.27
v2.4.3
v2.4.34
v2.4.35
v2.4.36
v2.4.37
v2.4.38
v2.4.39
v2.4.4
v2.4.43
v2.4.45
v2.4.46
v2.4.47
v2.4.48
v2.4.5
v2.4.50
v2.4.51
v2.4.52
v2.4.53
v2.4.54
v2.4.56
v2.4.57
v2.4.58
v2.4.59
v2.4.60
v2.4.61
v2.4.62
v2.4.63
v2.4.64
v2.4.65
v2.4.7
v2.4.78
v2.4.80
v2.4.82
v2.4.83
v2.4.85
v2.4.86
v2.4.87
v2.4.88
v2.4.89
v2.4.9
v2.4.91
v2.4.93
v2.4.94
v2.4.95
v2.4.96
v2.4.98
v2.5.0
v2.5.10
v2.5.11
v2.5.12
v2.5.13
v2.5.14
v2.5.15
v2.5.16
v2.5.17
v2.5.18
v2.5.19
v2.5.20
v2.5.21
v2.5.22
v2.5.23
v2.5.24
v2.5.25
v2.5.26
v2.5.27
v2.5.28
v2.5.29
v2.5.30
v2.5.31
v2.5.32
v2.5.33
v2.5.34
v2.5.35
v2.5.36
v2.5.37
v2.5.39
v2.5.40
v2.5.41
v2.5.42
v2.5.43
v2.5.44
v2.5.45
v2.5.7
v2.5.8
v2.5.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91851.json"