GHSA-j769-9gv9-65gr

Source

https://github.com/advisories/GHSA-j769-9gv9-65gr

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-j769-9gv9-65gr/GHSA-j769-9gv9-65gr.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-j769-9gv9-65gr

Aliases

CVE-2026-55867

Published

2026-08-28T22:15:41Z

Modified

2026-08-28T22:40:41Z

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

Graylog token revocation endpoint allows authenticated users to delete other users’ access tokens

Details

Impact

Graylog contains an insecure direct object reference (IDOR) vulnerability in the token revocation endpoint. An authenticated user can delete access tokens belonging to other users, including service account tokens and administrator tokens, if they know or can guess a valid token identifier.

The issue does not expose token contents, but it allows unauthorized token deletion, leading to integrity impact and potential availability impact for access token based integrations.

Patches

The issue has been fixed in the following Graylog versions: 6.3.12, 7.0.7, 7.1.2. Users should upgrade to one of these versions or above to remediate the vulnerability.

Graylog Cloud has already been patched.

Workarounds

There are no feasible workarounds for this issue. Upgrading to a patched version is recommended.

Customers using Graylog Enterprise or Security can review the audit log^1 for suspicious activity. Audit log lines for successful token deletions begin with access token deleted from user.

Credits

Thanks to michaelddickenson and sreelim for reporting.

Database specific

{
    "cwe_ids": [
        "CWE-639"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-28T22:15:41Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
}

References

Affected packages

Maven / org.graylog2:graylog2-server

Package

Name: org.graylog2:graylog2-server; View open source insights on deps.dev
Purl: pkg:maven/org.graylog2/graylog2-server

Affected ranges

Type: ECOSYSTEM
Events: Introduced

6.2.0

Fixed

6.3.12

Affected versions

6.*

6.2.0

6.2.1

6.2.2

6.2.3

6.2.4

6.2.5

6.2.6

6.2.7

6.2.8

6.2.9

6.2.10

6.2.11

6.2.12

6.2.13

6.2.14

6.3.0

6.3.1

6.3.2

6.3.3

6.3.4

6.3.5

6.3.7

6.3.8

6.3.9

6.3.10

6.3.11

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-j769-9gv9-65gr/GHSA-j769-9gv9-65gr.json"

Maven / org.graylog2:graylog2-server

Package

Name: org.graylog2:graylog2-server; View open source insights on deps.dev
Purl: pkg:maven/org.graylog2/graylog2-server

Affected ranges

Type: ECOSYSTEM
Events: Introduced

7.0.0

Fixed

7.0.7

Affected versions

7.*

7.0.0

7.0.1

7.0.2

7.0.3

7.0.4

7.0.5

7.0.6

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-j769-9gv9-65gr/GHSA-j769-9gv9-65gr.json"

Maven / org.graylog2:graylog2-server

Package

Name: org.graylog2:graylog2-server; View open source insights on deps.dev
Purl: pkg:maven/org.graylog2/graylog2-server

Affected ranges

Type: ECOSYSTEM
Events: Introduced

7.1.0

Fixed

7.1.2

Affected versions

7.*

7.1.1

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-j769-9gv9-65gr/GHSA-j769-9gv9-65gr.json"