Unauthenticated account access via unverified JWT signatures
Published May 27, 2026 · Updated May 27, 2026
Improper authentication in OpenLearnX before 2.0.4 allows remote attackers to access user accounts with forged JWT bearer tokens. OpenLearnX decodes bearer tokens with signature verification disabled in backend/routes/dashboard.py, backend/main.py, and backend/activity_logger.py, trusting attacker-controlled identity claims. No prior account or user interaction is required; an accepted forged token grants the account context represented by those claims and permits unauthorized account actions.
Summary
What happened
Improper authentication in OpenLearnX before 2.0.4 allows remote attackers to access user accounts with forged JWT bearer tokens. OpenLearnX decodes bearer tokens with signature verification disabled in backend/routes/dashboard.py, backend/main.py, and backend/activity_logger.py, trusting attacker-controlled identity claims. No prior account or user interaction is required; an accepted forged token grants the account context represented by those claims and permits unauthorized account actions.
The record
- CVE
- CVE-2026-44720
- Published
- May 27, 2026
- Updated
- May 27, 2026
- Vendor
- th30d4y
- Product
- OpenLearnX
- Classifications
- CWE-347, CWE-287, T1550.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 27, 2026CVE publishedPublication date reported by the CVE source.
- May 27, 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?
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- Affected versionversion=< 2.0.4
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
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Technologies
Your stack
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Your stack
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