What is CVE-2026-31240?

CVE-2026-31240 is a high-severity vulnerability in N/a, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-05-12.

How severe is CVE-2026-31240?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in N/a

CVE-2026-31240

The mem0 1.0.0 server lacks authentication and authorization controls for its memory management API endpoints. Critical functions such as updating memory records (PUT /memories/{memory_id}) are exposed without any verification of the reque…

Vulnerability class: Broken Authentication

EPSS: 0.001 (17.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-31240?: CVE-2026-31240 is a high-severity vulnerability in N/a, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-05-12.
How severe is CVE-2026-31240?: High severity. CVSS v3 base score is 7.5 out of 10.