What is CVE-2026-52394?

CVE-2026-52394 is a critical-severity vulnerability in N/a, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 9.1/10. Published 2026-10-13.

How severe is CVE-2026-52394?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Information disclosure in N/a

CVE-2026-52394

DeepSeek V4 is vulnerable to Incorrect Access Control via a crafted input.

Published 2026-10-13 · last modified 2026-10-13.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

CWE-201 — Insertion of Sensitive Information into Sent Data
CWE-209 — Generation of Error Message Containing Sensitive Information

References

deepseek.com
gist.github.com/CAPTAIN1275/48a0b7d67d0e58cb05c607e0d715447c

Frequently asked questions

What is CVE-2026-52394?: CVE-2026-52394 is a critical-severity vulnerability in N/a, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 9.1/10. Published 2026-10-13.
How severe is CVE-2026-52394?: Critical severity. CVSS v3 base score is 9.1 out of 10.