CVE-2026-82827

A hard-coded JWT signing secret key may allow administrative functions to be abused using fraudulently generated Bearer tokens

State: Published
Severity: 9.3 Critical
Published: Oct 1, 2026
Updated: Oct 1, 2026
Reserved: Aug 31, 2026

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Description

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.

Scores

CVSS	Score	Vector	Source
4.0	9.3 Critical	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	Hitachi
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	Hitachi

Weaknesses

CWE-321 Use of hard-coded cryptographic key

Affected Products

Product	Versions
Hitachi Coding Software SuiteHitachi Industrial Equipment Systems	3.3.0 and earlierAffectedfrom 4.0.0Not affected

References

https://www.hitachi-ies.com/common/documents/vulnerability/hcss/Hitachi_Coding_Software_Suite_Public_statement_20260925_EN.pdfvendor-advisory

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