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CVE-2019-15149

30
FAUCET Score

CVE-2019-15149 describes a critical vulnerability in Mitogen versions prior to 0.2.8, specifically within the core.py component, affecting the networkgenomics Mitogen library. A typo inadvertently disables a crucial unidirectional-routing protection mechanism when a child process is initiated by another child. This vulnerability carries a CVSS score of 9.8 (Critical), indicating a high potential for complete compromise of confidentiality, integrity, and availability, with no user interaction or authentication required. Despite the high severity, the vendor disputes its exploitability without additional hypothetical factors. Currently, there is no evidence of active exploitation, nor are there any public exploit codes available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage are also absent, suggesting a low level of public awareness or attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.2.8CPE matchmatch criteria
cpe:2.3:a:networkgenomics:mitogen:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.65%
Probability of exploitation in next 30 days
EPSS Percentile
74.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0165 is in the 62nd percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: mitogenFixed in: 0.2.8

Vendor Advisories (1)

pipGHSA-8rf6-w2mx-4xjhcritical

Undirectional routing wasn't respected in some cases in Mitogen

Aug 19, 2019

References

github.com / dw/mitogen/commit/5924af1566763e48c42028399ea0cd95c457b3dc
PatchThird Party Advisory
mitogen.networkgenomics.com / changelog.html
Release Notes