What’s Vulnerable › Vulnerabilities

CVE-2019-15149

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-08-18 · updated 2026-06-17
• Weakness: CWE-254

Description

core.py in Mitogen before 0.2.8 has a typo that drops the unidirectional-routing protection mechanism in the case of a child that is initiated by another child. The Ansible extension is unaffected. NOTE: the vendor disputes this issue because it is exploitable only in conjunction with hypothetical other factors, i.e., an affected use case within a library caller, and a bug in the message receiver policy code that led to reliance on this extra protection mechanism

Affected products

• Networkgenomics Mitogen: before 0.2.8 — fixed in 0.2.8

How to fix

Upgrade to a fixed version: Networkgenomics Mitogen 0.2.8. Check the vendor advisory for mitigations.

References

• https://github.com/dw/mitogen/commit/5924af1566763e48c42028399ea0cd95c457b3dc
• https://mitogen.networkgenomics.com/changelog.html#v0-2-8-2019-08-18
• https://github.com/dw/mitogen/commit/5924af1566763e48c42028399ea0cd95c457b3dc
• https://mitogen.networkgenomics.com/changelog.html#v0-2-8-2019-08-18

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