CVE-2026-94277: MISP galaxy matrix statistics view stored XSS via galaxy name

CVE-2026-94277 · Severity: info · Published 2026-09-21

MISP is a threat intelligence sharing platform used by organizations to collaborate on security incidents and attack patterns. An authenticated user with editor permissions can inject malicious JavaScript into a galaxy's name, which then executes in the browsers of any user viewing the galaxy statistics page, potentially allowing session hijacking or credential theft.

Technologies: MISP Project MISP. Vendors: MISP Project.

Quick answers

Is CVE-2026-94277 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-94277 being exploited in the wild.
How severe is CVE-2026-94277?
Informational severity, published 21 September 2026.
Which products and versions are affected?
MISP Project MISP before 2.5.47.
Is there a fix for CVE-2026-94277?
A patch was published on 2026-09-21: Fix committed to repository escaping galaxy name in output Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-94277 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-94277?
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.

Technical details

The vulnerability is a stored cross-site scripting (XSS) flaw in the galaxy matrix statistics view where the galaxy name is rendered directly into HTML via sprintf() without HTML encoding. An authenticated attacker with perm_galaxy_editor permission can craft a galaxy name containing JavaScript payload, which executes in the context of any subsequent viewer. The fix involves escaping the galaxy name output to prevent HTML interpretation.

Affected products

  • MISP Project MISP before 2.5.47

Timeline

  • 2026-09-21: disclosed
  • 2026-09-21: patched: Fix committed to repository escaping galaxy name in output

References

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