CVE-2026-41900Network attack vector

Authenticated host command execution via sandbox escape

Published May 8, 2026 · Updated May 8, 2026

Code injection in th30d4y OpenLearnX before 2.0.3 allows remote authenticated users to escape its sandbox and execute host commands. The execute_in_container path launches submitted code in Docker containers without the hardening added in the fix; the specific escape technique is undisclosed. Low-privileged application access is sufficient, and successful exploitation grants the command access available to the backend host context.

CVSS severity8.8
High
EPSS probability0.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in th30d4y OpenLearnX before 2.0.3 allows remote authenticated users to escape its sandbox and execute host commands. The execute_in_container path launches submitted code in Docker containers without the hardening added in the fix; the specific escape technique is undisclosed. Low-privileged application access is sufficient, and successful exploitation grants the command access available to the backend host context.

The record

CVE
CVE-2026-41900
Published
May 8, 2026
Updated
May 8, 2026
Vendor
th30d4y
Product
OpenLearnX
Classifications
CWE-78, CWE-284, CWE-693, CWE-250, CWE-94, T1611
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 8, 2026CVE publishedPublication date reported by the CVE source.
  2. May 8, 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=< 2.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

th30d4y · OpenLearnXversion=< 2.0.3

Published CVSS scores

8.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
10.0NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-284Improper Access Control
CWE-693Protection Mechanism Failure
CWE-250Execution with Unnecessary Privileges
CWE-94Improper Control of Generation of Code ('Code Injection')
T1611Escape to Host

Public exploit references

No public exploit references are available in this record.

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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