CVE-2026-42168

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-17 · updated 2026-07-23
Weakness: CWE-78

Description

django-pyas2 through 1.2.3 is vulnerable to OS command injection via the cmd_receive and cmd_send fields on the Partner model. These fields are passed directly to os.system() in pyas2/utils.py without sanitization, allowing an authenticated admin user to execute arbitrary commands on the server when an AS2 message is received or sent.

References

https://github.com/abhishek-ram/django-pyas2
https://github.com/abhishek-ram/django-pyas2/releases/tag/v1.2.3
https://github.com/m4ty-m/vulnerability-research/tree/main/CVE-2026-42168

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