Auth bypass in Nasa-Gcn Gcn.nasa.gov
CVE-2026-123664
A security flaw has been discovered in nasa-gcn gcn.nasa.gov up to b299b562af665878964b981a459f0a9c04b11adf. This issue affects some unknown processing of the file /user/email of the component Email Notification Handler. Performing a manipulation of the argument Recipient results in improper authorization. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The pull request to fix this issue awaits acceptance.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Nasa-Gcn Gcn.nasa.gov — versions b299b562af665878964b981a459f0a9c04b11adf
Weakness classification (CWE)
References
- github.com/nasa-gcn/gcn.nasa.gov/ (product, government-resource)
- github.com/nasa-gcn/gcn.nasa.gov/issues/3805 (issue-tracking, government-resource, exploit)
- https:/github.com/nasa-gcn/gcn.nasa.gov/pull/3863 (issue-tracking, government-resource, patch, broken-link)
- vuldb.com/cve/CVE-2026-123664 (third-party-advisory)
- vuldb.com/submit/1033135 (third-party-advisory)
- vuldb.com/vuln/431788 (technical-description, vdb-entry)
- vuldb.com/vuln/431788/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-123664?
- CVE-2026-123664 is a medium-severity vulnerability in Nasa-Gcn Gcn.nasa.gov, classified under Incorrect Privilege Assignment. CVSS score: 5.4/10. Published 2026-11-06.
- How severe is CVE-2026-123664?
- Medium severity. CVSS v3 base score is 5.4 out of 10.