Administrator access via unverified JWT refresh
Published Jan 20, 2026 · Updated Jan 20, 2026
Authentication bypass in MineAdmin 1.x and 2.x allows remote authenticated users to obtain administrator access through token refresh. The /system/refresh refresh method accepts an attacker-constructed JWT claiming the super administrator identity without validating its signature and returns a new valid token. A low-privileged account and a target-specific crafted token are required; successful exploitation grants administrator privileges without user interaction.
Summary
What happened
Authentication bypass in MineAdmin 1.x and 2.x allows remote authenticated users to obtain administrator access through token refresh. The /system/refresh refresh method accepts an attacker-constructed JWT claiming the super administrator identity without validating its signature and returns a new valid token. A low-privileged account and a target-specific crafted token are required; successful exploitation grants administrator privileges without user interaction.
The record
- CVE
- CVE-2026-1195
- Published
- Jan 20, 2026
- Updated
- Jan 20, 2026
- Vendor
- MineAdmin
- Product
- MineAdmin
- Classifications
- CWE-345, T1078
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 20, 2026CVE publishedPublication date reported by the CVE source.
- Jan 20, 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.
- Affected versionversion=1.x
- Affected versionversion=2.x
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- MineAdmin /system/refresh crafted-JWT proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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