CVE-2025-59870Network attack vector

Unauthenticated impersonation via static JWT signing secret

Published Jan 16, 2026 · Updated Jan 16, 2026

Authentication-token forgery in HCL Software MyXalytics 6.2 through 6.7 allows remote attackers to impersonate users via crafted JWTs. The web application reuses a static JWT signing secret without rotation, allowing anyone who learns the secret to sign tokens that its JWT validation accepts. Network access and knowledge of the secret are required; accepted tokens can expose or alter application data without interrupting service.

CVSS severity7.4
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication-token forgery in HCL Software MyXalytics 6.2 through 6.7 allows remote attackers to impersonate users via crafted JWTs. The web application reuses a static JWT signing secret without rotation, allowing anyone who learns the secret to sign tokens that its JWT validation accepts. Network access and knowledge of the secret are required; accepted tokens can expose or alter application data without interrupting service.

The record

CVE
CVE-2025-59870
Published
Jan 16, 2026
Updated
Jan 16, 2026
Vendor
HCL Software
Product
MyXalytics
Classifications
CWE-323, T1606
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.2 <=6.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HCL Software · MyXalyticsversion=6.2 <=6.7

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.4HCL SoftwareCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-323Reusing a Nonce, Key Pair in Encryption
T1606Forge Web Credentials

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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