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..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.
CVE-2026-75486
HIGHPre-NVD 8.08.0—Trending — 4 sources updated this week
EchelonGraph scoreHIGH confidence
Score 8.0 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. the CNA's CVSS baseline 8.0; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, ghsa
8.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.0Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.0
- EG Score
- 8.0(high)
- EG Risk
- 41(Track)EG Risk 41/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity80% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 67%
- KEV
- Not listed
Published
August 28, 2026
Last Modified
August 29, 2026
Advisory Details (4)
Auto-updated Aug 28, 2026Patch available. Sources: github_release, github_pr, github_commit.
generic
Synk Sweater Comb < 3.8.8 Command Injection via .vervet.yaml Branch Name | Advisories | VulnCheck
https://www.vulncheck.com/advisories/synk-sweater-comb-command-injection-via-vervet-yaml-branch-namegithub_commit Patch Available
commit 05a0eec4f2ac (snyk/sweater-comb)
Patch available: snyk/sweater-comb v3.8.8 (contains commit 05a0eec4f2ac)
https://github.com/snyk/sweater-comb/commit/05a0eec4f2acb9ce6d4814016b475504fc64eab2github_pr Patch Available
fix: address malicious config file CVE
Patch available: snyk/sweater-comb v3.8.8 (PR #743 merged 2026-08-27)
https://github.com/snyk/sweater-comb/pull/743github_release Patch Available
v3.8.8
Patch available: snyk/sweater-comb v3.8.8
https://github.com/snyk/sweater-comb/releases/tag/v3.8.8Vendor Advisories for CVE-2026-75486(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 9× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-29 23:40 UTCGHSA enrichment
- 2026-08-29 11:58 UTCEG score recompute
- 2026-08-29 11:58 UTCGHSA enrichment
- 2026-08-29 08:10 UTCEG score recompute
- 2026-08-29 08:10 UTCGHSA enrichment
- 2026-08-28 20:26 UTCEG score recompute
- 2026-08-28 19:40 UTCEG score recompute
- 2026-08-28 19:36 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-78
- CVE-2009-20011EG 10.0CRITICAL
- CVE-2011-10017EG 10.0CRITICAL
- CVE-2012-1166EG 10.0EPSS p91HIGH
- CVE-2012-2976EG 10.0EPSS p92HIGH
- CVE-2012-2953EG 10.0EPSS p99HIGH
- CVE-2011-4502EG 10.0EPSS p92HIGH
- CVE-2011-2148EG 10.0EPSS p92HIGH
- CVE-2011-0382EG 10.0EPSS p90HIGH
- CVE-2011-0381EG 10.0EPSS p92HIGH
- CVE-2011-0372EG 10.0HIGH
Frequently asked(5)
What is CVE-2026-75486?
CVE-2026-75486 is a high vulnerability published on August 28, 2026. 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…
When was CVE-2026-75486 disclosed?
CVE-2026-75486 was first published in the National Vulnerability Database on August 28, 2026, with the most recent update on August 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-75486 actively exploited?
CVE-2026-75486 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 33.2% of all scored CVEs.
What is the CVSS score of CVE-2026-75486?
CVE-2026-75486 has a CVSS v4.0 base score of 8.0 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-75486?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-75486, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-75486
Is Your Infrastructure Affected by CVE-2026-75486?
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