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CVE-2026-75486— Synk Sweater Comb < 3.8.8 Command Injection via .vervet.yaml Branch Name

Quick assessment

Affected
snyk sweater-comb
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Synk Sweater Comb 3.8.8 之前的版本存在命令注入漏洞。攻击者若能控制 配置文件，即可通过向 分支名字段中注入恶意输入，从而执行任意的操作系统命令。 中的 函数未对分支名进行清洗，直接将其通过未转义的反引号模板字符串传入 ，导致在对仓库执行 lint 命令时，可被利用以实现任意命令执行。

CVSS 8.0 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
snyk sweater-comb < 3.8.8 affected
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I. Basic Information for CVE-2026-75486

Vulnerability Information
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Vulnerability Title
Synk Sweater Comb < 3.8.8 Command Injection via .vervet.yaml Branch Name
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
snyk sweater-comb 0 ~ 3.8.8 -

II. Public POCs for CVE-2026-75486

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III. Intelligence Information for CVE-2026-75486

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Patches & Fixes for CVE-2026-75486 (2)

Vendor Advisories for CVE-2026-75486 (1)

Proof of Concept for CVE-2026-75486 (1)

IV. Related Vulnerabilities

Same vendor: snyk
Same weakness: CWE-78

V. Comments for CVE-2026-75486

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