CVE-2026-75486

Arbitrary command execution via unescaped branch name

Published Aug 28, 2026 · Updated Aug 29, 2026

OS command injection in Snyk Sweater Comb before 3.8.8 allows attackers to execute arbitrary commands via a crafted .vervet.yaml file. The expectGitBranch function inserts linters..optic-ci.original directly into a child_process.exec template without escaping the branch name. Exploitation requires control of the repository configuration and execution of the lint command, after which commands run with the invoking process's privileges.

CVSS severityUnavailable
Unscored
EPSS probability1.25%
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 Snyk Sweater Comb before 3.8.8 allows attackers to execute arbitrary commands via a crafted .vervet.yaml file. The expectGitBranch function inserts linters..optic-ci.original directly into a child_process.exec template without escaping the branch name. Exploitation requires control of the repository configuration and execution of the lint command, after which commands run with the invoking process's privileges.

The record

CVE
CVE-2026-75486
Published
Aug 28, 2026
Updated
Aug 29, 2026
Vendor
Snyk
Product
Sweater Comb
Classifications
T1059
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 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=0 <3.8.8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Snyk · Sweater Combversion=0 <3.8.8

Published CVSS scores

No CVSS assessment is available in this record.

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)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1059Command and Scripting Interpreter

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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