CVE-2026-36576Network attack vector

Unauthenticated command execution via unsanitized POST options

Published Jun 3, 2026 · Updated Jun 3, 2026

OS command injection in openlabs docker-wkhtmltopdf-aas through commit 9f50579 allows remote attackers to execute commands via POST options. The app.py handler concatenates unvalidated option keys and values into a wkhtmltopdf command string passed to executor.execute, which evaluates it with bash -c. Network access to the unauthenticated HTTP service is sufficient, and injected commands run as root inside its Docker container.

CVSS severity9.8
Critical
EPSS probability1.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in openlabs docker-wkhtmltopdf-aas through commit 9f50579 allows remote attackers to execute commands via POST options. The app.py handler concatenates unvalidated option keys and values into a wkhtmltopdf command string passed to executor.execute, which evaluates it with bash -c. Network access to the unauthenticated HTTP service is sufficient, and injected commands run as root inside its Docker container.

The record

CVE
CVE-2026-36576
Published
Jun 3, 2026
Updated
Jun 3, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 3, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

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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