CVE-2026-75486High· 8.0▾ Twilight

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…

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score44/ 100 · Moderate

impact 44 · likelihood 0.5 · exploitation 0

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Proof of concept

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Published

Aug 28, 2026

Updated

Sep 8, 2026

CVSS

8.0

Vendor

—

Product

—

CWE

CWE-78

Depth score

44 · Moderate

EPSS

2.3% · p83

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

EPSS history

Exploit-prediction probability, daily snapshots since Sep 8.

1.3% → 2.3%▲ 1.1%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

4 events · 28 days

Aug 28, 2026Published
Disclosed via NVD
Sep 8, 2026Record revised
Last analysed / modified upstream
Sep 8, 2026EPSS first tracked
1.3%
Sep 25, 2026EPSS peak
1.3% → 2.3%

CWE-78 #nvd

Full technical detail▾

Overview

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.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd

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