Synk Sweater Comb < 3.8.8 Command Injection via .vervet.yaml Branch Name (CVE-2026-75486) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-75486

Synk Sweater Comb < 3.8.8 Command Injection via .vervet.yaml Branch Name

Answer in brief

CVE-2026-75486 records a Unknown severity vulnerability in Synk Sweater Comb < 3.8.8 Command Injection via .vervet.yaml Branch Name. The current sources do not mark it as known exploited. The current feed maps snyk/sweater-comb (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 28, 2026Updated Aug 28, 2026Source checked Aug 28, 2026First seen by HOL Aug 28, 2026Material review Aug 28, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps snyk/sweater-comb (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
snyk/sweater-combgeneric	>=0 <3.8.8	3.8.8

Recommended response

Check inventory. Check lockfiles and deployed manifests for snyk/sweater-comb.
Review the reported fix. Update snyk/sweater-comb to 3.8.8 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 28, 2026

Sources and claim methodology

Upstream source description

Synk Sweater Comb before 3.8.8 contains a command injection vulnerability that allows an attacker who controls the .vervet.yaml configuration file to execute arbitrary OS commands by injecting malicious input into the linters.<key>.optic-ci.original branch name field. The expectGitBranch() function in src/lint.ts passes the unsanitized branch name directly into child_process.exec() via an unescaped template literal, enabling arbitrary command execution when the lint command is run against the repository.

Quoted source text, attributed separately from HOL analysis.