VulnerabilityModified
CVE-2021-28794
The unofficial ShellCheck extension before 0.13.4 for Visual Studio Code mishandles shellcheck.executablePath.
CRITICAL 9.8EPSS 1.83%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.83%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The unofficial ShellCheck extension before 0.13.4 for Visual Studio Code mishandles shellcheck.executablePath.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.83% probability · 79th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- shellcheck project/shellcheck
- Source
- cve@mitre.org
EPSS 1.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/timonwong/vscode-shellcheck/pull/181Patch, Third Party Advisory
- https://github.com/timonwong/vscode-shellcheck/releases/tag/v0.13.4Release Notes, Third Party Advisory
- https://vuln.ryotak.me/advisories/10Third Party Advisory
- https://github.com/timonwong/vscode-shellcheck/pull/181Patch, Third Party Advisory
- https://github.com/timonwong/vscode-shellcheck/releases/tag/v0.13.4Release Notes, Third Party Advisory
- https://vuln.ryotak.me/advisories/10Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.