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Vulnerabilities

Vulnerability · CVE-2026-31231

Cognee thru v0.4.0 contains a critical remote code execution vulnerability in its notebook cell execution API endpoint.

Published May 12, 2026 · catalog updated Jun 17, 2026 · Cognee thru v0.4.0 contains

Check if you run it

No confirmed exploitation is on record for CVE-2026-31231. EPSS is 0.93%. Act only if a listed version of Cognee thru v0.4.0 contains is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Cognee thru v0.4.0 contains).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.93%
Remediation
Not established
Affected products
See sources for product scope

Cognee thru v0.4.0 contains a critical remote code execution vulnerability in its notebook cell execution API endpoint. The endpoint is designed to execute arbitrary Python code provided by the user, but it does so using the unsafe exec() function without any sandboxing, validation, or security controls. An attacker can exploit this by sending a specially crafted POST request containing malicious Python code to the execution endpoint. This leads to arbitrary code execution on the Cognee server with the privileges of the server process, allowing complete compromise of the system.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-31231

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-31231. EPSS is 0.93%. Act only if a listed version of Cognee thru v0.4.0 contains is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-94: Code Injection. EPSS 0.93%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 12, 2026 · NIST NVD

    Detected

    Cognee thru v0.4.0 contains a critical remote code execution vulnerability in its notebook cell execution API endpoint. The endpoint is designed to execute arbitrary Python code provided by the user, but it does so using the unsafe exec() function without any sandboxing, validation, or security controls. An attacker can exploit this by sending a specially crafted POST request containing malicious

  2. Jun 17, 2026 · NIST NVD

    Updated

    Cognee thru v0.4.0 contains a critical remote code execution vulnerability in its notebook cell execution API endpoint. The endpoint is designed to execute arbitrary Python code provided by the user, but it does so using the unsafe exec() function without any sandboxing, validation, or security controls. An attacker can exploit this by sending a specially crafted POST request containing malicious

Sources

  • CVE.orgVulnerability recordCVE-2026-31231

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-31231

    30-day exploitation probability 0.9%

    first.org
  • NIST NVDVulnerability recordCVE-2026-31231

    Cognee thru v0.4.0 contains a critical remote code execution vulnerability in its notebook cell execution API endpoint. The endpoint is designed to execute arbitrary Python code provided by the user, but it does so using the unsafe exec() function without any sandboxing, validati

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.