Is CVE-2026-104910 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-104910 being exploited in the wild.

How severe is CVE-2026-104910?

Informational severity, published 2 October 2026.

Which products and versions are affected?

MISP Project MISP prior to commit 2ffa97f05.

Is there a fix for CVE-2026-104910?

Yes: fixed in commit 2ffa97f05 and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-104910 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-104910?

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.

CVE-2026-104910: MISP authorization bypass in related events listing

CVE-2026-104910 · Severity: info · Published 2026-10-02

MISP is a threat intelligence sharing platform that controls access to security events based on user permissions and distribution settings. An authorization bypass allows authenticated users to view metadata—such as event titles, dates, and correlation counts—of events they should not have permission to access. An attacker could use this information to conduct reconnaissance on confidential threat intelligence across different sharing groups.

Technologies: MISP Project MISP. Vendors: MISP Project.

Quick answers

Is CVE-2026-104910 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-104910 being exploited in the wild.
How severe is CVE-2026-104910?: Informational severity, published 2 October 2026.
Which products and versions are affected?: MISP Project MISP prior to commit 2ffa97f05.
Is there a fix for CVE-2026-104910?: Yes: fixed in commit 2ffa97f05 and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-104910 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-104910?: 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: commit 2ffa97f05 and later

Technical details

The related events listing functionality fails to re-validate the caller's access rights when retrieving correlated events from the correlation table. The system uses stale distribution and sharing group snapshots stored at correlation time, which do not reflect unpublished flag changes or updates to sharing permissions after the correlation was created. An authenticated attacker with access to at least one event can enumerate metadata of inaccessible related events.

Affected products

MISP Project MISP prior to commit 2ffa97f05

Timeline

2026-10-02: disclosed

References

https://github.com/MISP/MISP/commit/2ffa97f05

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