CVE-2026-75486
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 4.0
- 8.5 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 1.25% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Source
- disclosure@vulncheck.com
References
- https://github.com/snyk/sweater-comb/commit/05a0eec4f2acb9ce6d4814016b475504fc64eab2
- https://github.com/snyk/sweater-comb/pull/743
- https://github.com/snyk/sweater-comb/releases/tag/v3.8.8
- https://www.vulncheck.com/advisories/synk-sweater-comb-command-injection-via-vervet-yaml-branch-name
- https://github.com/snyk/sweater-comb/pull/743
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.