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CVE-2026-82827— A hard-coded JWT signing secret key may allow administrative functions to be abused using fraudulently generated Bearer tokens

Quick assessment

Affected
Hitachi Industrial Equipment Systems Hitachi Coding Software Suite
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hitachi Coding Software Suite 存在一个与“硬编码加密密钥”相关的漏洞。由于 JWT（JSON Web Token）签名密钥被硬编码，攻击者可以生成未经授权的 Bearer 令牌，并借此利用管理功能。 该问题影响 Hitachi Coding Software Suite：3.3.0 及之前版本。

CVSS 9.8 · Critical
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I. Basic Information for CVE-2026-82827

Vulnerability Information
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Vulnerability Title
A hard-coded JWT signing secret key may allow administrative functions to be abused using fraudulently generated Bearer tokens
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的密码学密钥
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Hitachi Industrial Equipment Systems Hitachi Coding Software Suite 0 ~ 3.3.0 -

II. Public POCs for CVE-2026-82827

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III. Intelligence Information for CVE-2026-82827

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Other References for CVE-2026-82827 (1)

Same Patch Batch · Hitachi Industrial Equipment Systems · 2026-10-01 · 6 CVEs total

CVE-2026-82825 9.8 CRITICAL Missing proper authentication for critical APIs may allow sensitive information to be obta
CVE-2026-82824 9.8 CRITICAL Path traversal may allow arbitrary files to be viewed, created, modified, or deleted
CVE-2026-82829 9.8 CRITICAL Hidden accounts or hard-coded credentials may permit unauthorized access without the legit
CVE-2026-82828 8.8 HIGH Improper authorization may allow a general user to perform operations equivalent to those
CVE-2026-82826 7.5 HIGH Authentication information or sensitive data may be intercepted in transit

IV. Related Vulnerabilities

Same product: Hitachi Coding Software Suite
Same vendor: Hitachi Industrial Equipment Systems
Same weakness: CWE-321

V. Comments for CVE-2026-82827

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