CVE-2026-1436

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Source
https://cve.org/CVERecord?id=CVE-2026-1436
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1436.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-1436
Published
2026-02-18T14:16:05.850Z
Modified
2026-04-10T05:37:57.143981Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

Improper Access Control (IDOR) in the Graylog API, version 2.2.3, which occurs when modifying the user ID in the URL. An authenticated user can access other user's profiles without proper authorization checks. Exploiting this vulnerability allows valid users of the system to be listed and sensitive third-party information to be accessed, such as names, email addresses, internal identifiers, and last activity. The endpoint 'http://<IP>:12900/users/<my_user>' does not implement object-level authorization validations.

References

Affected packages

Git / github.com/graylog2/graylog2-server

Affected ranges

Type
GIT
Repo
https://github.com/graylog2/graylog2-server
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
7adc951e40b9dcacc3bc60d2b51e8a5e976ca53b
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.2.3"
        }
    ]
}

Affected versions

0.*
0.10.0
0.10.0-preview.2
0.10.0-rc.1
0.10.0-rc.2
0.10.0-rc.3
0.10.0-rc.4
0.11.0
0.20.0-preview.1
0.20.0-preview.2
0.20.0-preview.3
0.20.0-preview.4
0.20.0-preview.5
0.20.0-preview.6
0.20.0-rc.1
0.20.0-rc.1-1
0.21.0-beta1
0.21.0-beta2
0.21.0-beta3
0.21.0-beta4
0.21.0-rc.1
0.9
0.9.1
0.9.2
0.9.3
0.9.4
0.9.4p1
0.9.5
0.9.5p1
0.9.6
0.9.6-PREVIEW
0.9.6-PREVIEW.2
0.9.6-PREVIEW.3
0.9.6-beta
0.9.7-preview.1
1.*
1.0.0-beta.1
1.1.0-beta.1
1.1.0-beta.2
1.1.0-beta.3
1.1.0-rc.1
1.2.0-rc.1
1.2.0-rc.2
1.2.0-rc.3
1.2.0-rc.4
2.*
2.0.0-alpha.1
2.0.0-alpha.2
2.0.0-alpha.3
2.0.0-alpha.4
2.0.0-alpha.5
2.0.0-beta.1
2.0.0-beta.2
2.0.0-beta.3
2.1.0-alpha.1
2.1.0-alpha.2
2.1.0-beta.1
2.1.0-beta.2
2.1.0-beta.3
2.1.0-beta.4
2.1.0-rc.1
2.2.0
2.2.0-alpha.1
2.2.0-alpha.2
2.2.0-alpha.3
2.2.0-alpha.4
2.2.0-beta.1
2.2.0-beta.2
2.2.0-beta.3
2.2.0-beta.4
2.2.0-beta.5
2.2.0-beta.6
2.2.0-rc.1
2.2.1
2.2.2
2.2.3
v0.*
v0.20.0-preview.1
v0.20.0-rc.1-1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1436.json"