CVE-2026-95693: MISP EventReport path traversal information disclosure

CVE-2026-95693 · Severity: info · Published 2026-09-22

MISP, a threat intelligence platform, contains a vulnerability in its EventReport upload functionality where an authenticated user with basic permissions can enumerate files on the server by supplying arbitrary filesystem paths. The application returns distinct error messages revealing whether files exist and their type, allowing attackers to map the server's filesystem without reading actual file contents. This information disclosure can identify sensitive locations like configuration files or private keys that could be targeted in follow-up attacks.

Technologies: MISP Project MISP. Vendors: MISP Project.

Quick answers

Is CVE-2026-95693 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-95693 being exploited in the wild.
How severe is CVE-2026-95693?
Informational severity, published 22 September 2026.
Which products and versions are affected?
MISP Project MISP.
Is there a fix for CVE-2026-95693?
A patch was published on 2026-09-22: Fix applied in commit 9a2a4ac to reject forged upload paths Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-95693 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-95693?
Check whether you run MISP Project MISP. 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.

Technical details

The EventReport::uploadPicture method processes a caller-supplied tmp_name field and invokes file_exists(), mime_content_type(), and exif_imagetype() before validating with is_uploaded_file(). An authenticated perm_add user can supply arbitrary filesystem paths, and distinct validation error messages leak file existence and type information. The vulnerability does not allow file read/write or code execution, but enables information disclosure through error-based enumeration.

Affected products

  • MISP Project MISP

Timeline

  • 2026-09-22: disclosed
  • 2026-09-22: patched: Fix applied in commit 9a2a4ac to reject forged upload paths

References

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