CVE-2026-52821

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Source
https://cve.org/CVERecord?id=CVE-2026-52821
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52821.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-52821
Aliases
Published
2026-09-15T10:38:16Z
Modified
2026-10-28T02:31:03Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Kimai: Improper Authorization in Kimai Activity Creation with Preset Project Allows Creation Under Unauthorized Projects
Details

Kimai is an open-source time tracking application. Prior to 2.57.0, GET or POST requests to /en/admin/activity/create/{project} and /en/admin/project/create/{customer} require only the generic create_activity or create_project capability and do not verify edit access to the supplied Project or Customer object. A user who knows a valid project.id or customer identifier can use the preset-parent creation logic in src/Controller/ActivityController.php or src/Controller/ProjectController.php to persist a new child business object under an unauthorized parent, polluting project or customer configuration and influencing later time-entry, rate, reporting, and billing behavior. This issue is fixed in version 2.57.0.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-639",
        "CWE-862"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52821.json"
}
References

Affected packages

Git / github.com/kimai/kimai

Affected ranges

Type
GIT
Repo
https://github.com/kimai/kimai
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
09b7adaa062d4843afa882fc1343800467a6125d
Fixed
976d38e8a4485a1c923ee7b5841849e91a06e849
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.57.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "976d38e8a4485a1c923ee7b5841849e91a06e849"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "2.57.0",
            "range":  [
                {
                    "fixed":  "09b7adaa062d4843afa882fc1343800467a6125d"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

0.*
0.1
0.2
0.3
0.4
0.5
0.6
0.6.1
0.7
0.8
0.8.1
0.9
1.*
1.0
1.0.1
1.1
1.10
1.10.1
1.10.2
1.11
1.11.1
1.12
1.13
1.14
1.14.1
1.14.2
1.14.3
1.15
1.15.1
1.15.2
1.15.3
1.15.4
1.15.5
1.15.6
1.16
1.16.1
1.16.10
1.16.2
1.16.3
1.16.4
1.16.5
1.16.6
1.16.7
1.16.8
1.16.9
1.17
1.17.1
1.18
1.18.1
1.18.2
1.19
1.19.1
1.19.2
1.19.3
1.19.4
1.19.5
1.19.6
1.19.7
1.2
1.20
1.20.1
1.20.2
1.20.3
1.20.4
1.21.0
1.22.0
1.22.1
1.23.0
1.23.1
1.24.0
1.25.0
1.26.0
1.27.0
1.28.0
1.28.1
1.29.0
1.29.1
1.3
1.30.0
1.30.1
1.30.4
1.4
1.4.1
1.4.2
1.5
1.6
1.6.1
1.6.2
1.7
1.8
1.9
2.*
2.0.0
2.0.0-alpha
2.0.0-beta
2.0.0-beta-2
2.0.0-beta-3
2.0.0-rc-1
2.0.1
2.0.10
2.0.11
2.0.12
2.0.13
2.0.14
2.0.15
2.0.16
2.0.17
2.0.18
2.0.19
2.0.2
2.0.20
2.0.21
2.0.22
2.0.23
2.0.24
2.0.25
2.0.26
2.0.27
2.0.28
2.0.29
2.0.3
2.0.30
2.0.31
2.0.32
2.0.33
2.0.34
2.0.35
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.0.9
2.1.0
2.10.0
2.11.0
2.12.0
2.13.0
2.14.0
2.15.0
2.16.0
2.16.1
2.17.0
2.18.0
2.19.0
2.19.1
2.2.0
2.2.1
2.20.0
2.20.1
2.21.0
2.22.0
2.23.0
2.24.0
2.25.0
2.26.0
2.27.0
2.28.0
2.29.0
2.3.0
2.30.0
2.31.0
2.32.0
2.33.0
2.34.0
2.35.0
2.35.1
2.36.0
2.36.1
2.37.0
2.38.0
2.39.0
2.4.0
2.4.1
2.40.0
2.41.0
2.42.0
2.43.0
2.44.0
2.45.0
2.46.0
2.47.0
2.48.0
2.49.0
2.5.0
2.50.0
2.51.0
2.52.0
2.53.0
2.54.0
2.55.0
2.56.0
2.6.0
2.7.0
2.8.0
2.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52821.json"