CVE-2026-45334

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-45334
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45334.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45334
Aliases
Published
2026-07-16T21:42:51.081Z
Modified
2026-07-19T03:31:04.020788970Z
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
Kirby: Content locks disclose IDs and emails of inaccessible users from `users.access/list` permissions
Details

Kirby is an open-source content management system. In versions prior to 4.9.1 and 5.4.1, the content-locking feature returned lock information without checking the requesting user's access permissions. Kirby's Panel includes a content-locking feature that records which user currently has a model open for editing. This lock prevents conflicting edits by multiple users and displays the locking user's identity in the Panel UI so other users know who to contact. Internally, the locking user's email address and identifier are included in every Panel view payload and in error responses returned when a user attempts to edit a model that is currently locked by another user. This allowed a low-privilege authenticated Panel user, whose role was configured with users.access: false or users.list: false, to learn the email address and identifier of any user who currently had a model open for editing in the Panel, including administrators and other higher-privilege users. Content locks are active for a configurable window (10 minutes by default). The email address can allow admin account enumeration, target phishing, and feed credential-stuffing attacks against the Kirby installation or other sites. The internal user ID can be cross-referenced with other endpoints once the requester has obtained a higher privilege through unrelated means. This issue has been fixed in versions 4.9.1 and 5.4.1.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45334.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-862"
    ]
}
References

Affected packages

Git / github.com/getkirby/kirby

Affected ranges

Type
GIT
Repo
https://github.com/getkirby/kirby
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Introduced
2ff182ba39ddea19fa1615bd3733f734b5e53842
Fixed
2b37e83368eaf852414db77049d21e61c66ed80f
Fixed
b583392a724601698426c21c593b6a3d6d702c49
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.9.1"
        },
        {
            "introduced": "5.0.0"
        },
        {
            "fixed": "5.4.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

3.*
3.0.0
3.0.1
3.0.2
3.0.2-rc.1
3.0.3
3.0.3-rc.1
3.0.3-rc.2
3.0.3-rc.3
3.1.0
3.1.0-rc.1
3.1.1
3.1.2
3.1.2-rc.1
3.1.3
3.1.3-rc.1
3.1.4
3.1.4-rc.1
3.2.0
3.2.0-rc.1
3.2.0-rc.2
3.2.0-rc.3
3.2.0-rc.4
3.2.1
3.2.1-rc.1
3.2.2
3.2.3-rc.1
3.2.5
3.2.5-rc.1
3.2.5-rc.2
3.3.0
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.3.6
3.4.0
3.4.1
3.4.2
3.5.0
3.5.0-rc.1
3.5.0-rc.2
3.5.0-rc.3
3.5.0-rc.4
3.5.0-rc.5
3.5.0-rc.6
3.5.0-rc.7
3.5.1
3.5.1-rc.1
3.5.2
3.5.3
3.5.3.1
3.5.4
3.5.5
3.5.6
3.5.7
3.5.7.1
3.6.0
3.6.1.1
3.6.2
3.6.2-rc.1
3.6.2-rc.2
3.6.2-rc.3
3.6.3
3.6.3.1
3.6.4
3.6.5
3.6.6
3.7.0
3.7.0.1
3.7.0.2
3.7.1
3.7.2
3.7.2.1
3.7.3
3.7.4
3.7.4-rc.1
3.7.5
3.8.0
3.8.1
3.8.1.1
3.8.2
3.8.3
3.8.4
3.9.0
3.9.1
3.9.2
3.9.3
3.9.4
3.9.5
3.9.6
3.9.6-rc.1
3.9.6.1
3.9.7
3.9.8
4.*
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.1.1
4.1.2
4.2.0
4.3.0
4.3.1
4.4.0
4.4.1
4.5.0
4.6.0
4.6.1
4.7.0
4.7.1
4.7.2
4.8.0
4.9.0
5.*
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.1.1
5.1.2
5.1.3
5.1.4
5.2.0
5.2.1
5.2.2
5.2.3
5.3.0
5.3.1
5.3.2
5.3.3
5.4.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45334.json"