CVE-2026-18640

The NewNotebook API does not sufficiently sanitize its parameters allowing an authenticated user with NOTEBOOK_EDIT permission to write the notebook record outside the org's data store directory. The file written must have an extension of ".json.db" but can otherwise overwrite other metadata files (such as ACL records, hunts etc). This can corrupt these files and cause data corruption.

• CWE-22

• http://docs.velociraptor.app/announcements/advisories/cve-2026-18640/

Published

Aug 11, 2026

Last Modified

Aug 11, 2026

Status

Received

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-18632A security flaw has been discovered in langgenius dify up to…6.3
• CVE-2026-18634An insecure handling of serialized objects vulnerability was…
• CVE-2026-18635Velociraptor's VQL has a query() plugin which allows running…7.2
• CVE-2026-18636The Velociraptor gRPC API has a VFSGetBuffer endpoint which …6.8
• CVE-2026-18638Any authenticated Velociraptor user — including one holding …6.5
• CVE-2026-18639When Velociraptor is configured to use an OIDC IdP for authe…7.3
• CVE-2026-18641A vulnerability was determined in Sangfor Operation and Main…7.3
• CVE-2026-18642Deserialization of untrusted data vulnerability in TUBITAK B…7.8
• CVE-2026-18644A vulnerability was identified in danpros HTMLy up to 3.1.1.…5.4
• CVE-2026-18645A security flaw has been discovered in danpros HTMLy up to 3…5.4
• CVE-2026-18646A weakness has been identified in danpros HTMLy up to 3.1.1.…5.5
• CVE-2026-18647A security vulnerability has been detected in jina-ai reader…7.3