{"id":"CVE-2026-73055","title":"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","summary":"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…","severity":"medium","cvss":4.8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-116"],"published":"2026-08-15","updated":"2026-08-15","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73055","references":[{"url":"https://github.com/ericcornelissen/shescape/commit/7cba30594c16a21524706efe2f6c6c9d8923f411","label":"disclosure@vulncheck.com"},{"url":"https://github.com/ericcornelissen/shescape/commit/d86bf2ae22961c73458bddf70dd06adf9dadb36c","label":"disclosure@vulncheck.com"},{"url":"https://github.com/ericcornelissen/shescape/security/advisories/GHSA-j44h-fqhh-fh28","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/shescape-before-home-directory-disclosure-via-busybox","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"ingestedAt":"2026-08-16T13:39:04.597Z","epss":0.00207,"epssPercentile":0.11117,"slug":"CVE-2026-73055","body":"## Overview\n\nShescape 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":26.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}