Argument injection via unescaped bracket glob syntax
Published Mar 11, 2026 · Updated Mar 11, 2026
Argument injection in Shescape before 2.1.10 allows remote attackers to alter shell-command arguments through bracket glob expansion. The Bash, BusyBox sh, and Dash escape helpers omit square brackets from their special-character regexes, leaving attacker-controlled patterns active. Exposure requires an application to pass untrusted data to escape() and interpolate the result into a command string; matching trusted pathnames can be targeted or disclosed.
Summary
What happened
Argument injection in Shescape before 2.1.10 allows remote attackers to alter shell-command arguments through bracket glob expansion. The Bash, BusyBox sh, and Dash escape helpers omit square brackets from their special-character regexes, leaving attacker-controlled patterns active. Exposure requires an application to pass untrusted data to escape() and interpolate the result into a command string; matching trusted pathnames can be targeted or disclosed.
The record
- CVE
- CVE-2026-32094
- Published
- Mar 11, 2026
- Updated
- Mar 11, 2026
- Vendor
- Eric Cornelissen
- Product
- Shescape
- Classifications
- CWE-200
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 11, 2026CVE publishedPublication date reported by the CVE source.
- Mar 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 2.1.10
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- GHSA-9jfh-9xrq-4vwm proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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