CVE-2026-44364Network attack vector

Authenticated session data modification via CSRF-exempt home blueprint

Published May 13, 2026 · Updated May 13, 2026

Cross-site request forgery in MISP Project MISP modules 3.0.7 and earlier allows remote authenticated users to modify session query data. The website application's create_app function exempts home_blueprint from CSRF protection, while the home handler parses query parameters and writes the resulting object into the authenticated user's session. Exploitation requires high-privileged access and passive interaction by a separate authenticated user, and the documented direct effect is limited to changing that user's session query state.

CVSS severity9.3
Critical
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in MISP Project MISP modules 3.0.7 and earlier allows remote authenticated users to modify session query data. The website application's create_app function exempts home_blueprint from CSRF protection, while the home handler parses query parameters and writes the resulting object into the authenticated user's session. Exploitation requires high-privileged access and passive interaction by a separate authenticated user, and the documented direct effect is limited to changing that user's session query state.

The record

CVE
CVE-2026-44364
Published
May 13, 2026
Updated
May 13, 2026
Vendor
MISP Project
Product
MISP modules
Classifications
CWE-352
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 13, 2026CVE publishedPublication date reported by the CVE source.
  2. May 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 3.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

MISP Project · MISP modulesversion=<= 3.0.7

Published CVSS scores

9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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