CVE-2026-104914: MISP improper access control in attribute search endpoints

CVE-2026-104914 · Severity: info · Published 2026-10-02

MISP is a threat intelligence sharing platform that organizations use to collaborate on malware indicators and security data. A flaw in its attribute search endpoints allowed authenticated users to view soft-deleted security indicators from other organizations' events, potentially exposing sensitive threat intelligence that those organizations intended to keep private. The vulnerability requires an authenticated account with read access to the affected events.

Technologies: MISP Project MISP. Vendors: MISP Project.

Quick answers

Is CVE-2026-104914 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-104914 being exploited in the wild.
How severe is CVE-2026-104914?
Informational severity, published 2 October 2026.
Which products and versions are affected?
MISP Project MISP prior to v2.5.48.
Is there a fix for CVE-2026-104914?
Yes: fixed in v2.5.48. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-104914 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-104914?
Check whether you run MISP Project MISP at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: v2.5.48

Technical details

An improper access control vulnerability exists in MISP's attribute search and paginated attribute listing endpoints. When querying for soft-deleted attributes, the application fails to restrict results to the owning organization and sync-permission users, unlike the event detail view which implements these checks correctly. An authenticated attacker with read visibility to an event owned by another organization can enumerate and retrieve soft-deleted threat intelligence attributes by querying the vulnerable endpoints.

Affected products

  • MISP Project MISP prior to v2.5.48

Timeline

  • 2026-10-02: disclosed
  • 2026-10-02: patched

References

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