CVE-2026-73055

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Source
https://cve.org/CVERecord?id=CVE-2026-73055
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73055.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-73055
Aliases
  • GHSA-j44h-fqhh-fh28
Published
2026-08-15T21:44:54.677Z
Modified
2026-08-18T03:31:23.095894038Z
Severity
  • 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Shescape before 2.1.15 Home Directory Disclosure via BusyBox
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-116"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73055.json",
    "cna_assigner": "VulnCheck"
}
References

Affected packages

Git / github.com/ericcornelissen/shescape

Affected ranges

Type
GIT
Repo
https://github.com/ericcornelissen/shescape
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
107771e62c86af15fdb2638189ed329ed26c24d3
Database specific
Show details 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.1.15"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.2.0
v0.2.1
v0.3.0
v0.3.1
v0.4.0
v0.4.1
v1.*
v1.0.0
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.2.0
v1.2.1
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.4.0
v1.5.0
v1.5.1
v1.5.10
v1.5.2
v1.5.3
v1.5.4
v1.5.5
v1.5.6
v1.5.7
v1.5.8
v1.5.9
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.6.4
v1.6.5
v1.6.6
v1.6.7
v1.7.0
v1.7.1
v1.7.2
v1.7.3
v1.7.4
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.1.0
v2.1.1
v2.1.10
v2.1.11
v2.1.12
v2.1.13
v2.1.14
v2.1.2
v2.1.3
v2.1.4
v2.1.5
v2.1.6
v2.1.7
v2.1.8
v2.1.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73055.json"