Administrator impersonation via brute-forced JWT signing key
Published Apr 7, 2026 · Updated Apr 7, 2026
Improper access control in ParisNeo LoLLMS before 2.2.0 allows remote attackers to forge administrator JWTs using a brute-forced signing key. Session management signs JWTs with a weak SECRET_KEY, enabling offline key recovery, payload modification, and token resigning. No account is required; a forged administrator token grants access to restricted endpoints and permits administrator impersonation.
Summary
What happened
Improper access control in ParisNeo LoLLMS before 2.2.0 allows remote attackers to forge administrator JWTs using a brute-forced signing key. Session management signs JWTs with a weak SECRET_KEY, enabling offline key recovery, payload modification, and token resigning. No account is required; a forged administrator token grants access to restricted endpoints and permits administrator impersonation.
The record
- CVE
- CVE-2026-1114
- Published
- Apr 7, 2026
- Updated
- Apr 7, 2026
- Vendor
- ParisNeo
- Product
- LoLLMS
- Classifications
- CWE-284, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 7, 2026CVE publishedPublication date reported by the CVE source.
- Apr 7, 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=unspecified <2.2.0
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.
Public exploit references
- Huntr JWT signing-key recovery proof of conceptproof of concept · unverified
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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