What is CVE-2026-82827?

CVE-2026-82827 is a critical-severity vulnerability, classified under Use of Hard-coded Cryptographic Key. CVSS score: 9.8/10. Published 2026-10-01.

How severe is CVE-2026-82827?

Critical severity. CVSS v3 base score is 9.8 out of 10.

CVE-2026-82827

CVE-2026-82827

Hitachi Coding Software Suite contains a vulnerability related to Use of Hard-coded Cryptographic Key. The Hardcoding of JWT signing secret key allows an attacker to generate unauthorized Bearer tokens and exploit administrative functions. This issue affects Hitachi Coding Software Suite: through 3.3.0.

Published 2026-10-01 · last modified 2026-10-01.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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-321 — Use of Hard-coded Cryptographic Key

References

www.hitachi-ies.com/common/documents/vulnerability/hcss/Hitachi_Coding_Software… (vendor-advisory)

Frequently asked questions

What is CVE-2026-82827?: CVE-2026-82827 is a critical-severity vulnerability, classified under Use of Hard-coded Cryptographic Key. CVSS score: 9.8/10. Published 2026-10-01.
How severe is CVE-2026-82827?: Critical severity. CVSS v3 base score is 9.8 out of 10.