CVE-2026-73055
Medium · 4.8CVSS
4.8
EPSS
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Published
Aug 15, 2026
CISA due date
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The record
Shescape before 2.1.15 (and 3.0.0 before 3.0.2) fails to properly escape tilde (~) characters in assignment contexts on Unix systems where the shell is explicitly configured to "sh" or true and /bin/sh points to BusyBox. Using the escape and escapeAll APIs with untrusted input in an assignment prefixed to a command, an attacker can inject a tilde payload to disclose the user's home directory location and, depending on usage, alter the location on which a command operates.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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