High
Zed: Allowlist Bypass via Bash Arithmetic Expansion in Terminal Tool Permissions
Type: advisorySources: OSV
Zed is a code editor. Prior to 0.229.0, Zed's terminal tool permission system can be bypassed via bash arithmetic expansion $((...)), allowing execution of arbitrary commands nested inside an allowlisted command like echo. This vulnerability is fixed in 0.229.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-44466
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 02:47 UTC · Revision 1
Source evidence
Zed: Allowlist Bypass via Bash Arithmetic Expansion in Terminal Tool Permissions
core-osv · Original sourcePublished 28 May 2026, 16:16 UTC
Zed is a code editor. Prior to 0.229.0, Zed's terminal tool permission system can be bypassed via bash arithmetic expansion $((...)), allowing execution of arbitrary commands nested inside an allowlisted command like echo. This vulnerability is fixed in 0.229.0.
osv:CVE-2026-44466
Complete source record
{
"id": "c09d11e9a886e3ce3340256b5ec35eaecd4de4126afd6b9bdbbf67e019ab9db8",
"url": "https://osv.dev/vulnerability/CVE-2026-44466",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Zed: Allowlist Bypass via Bash Arithmetic Expansion in Terminal Tool Permissions",
"summary": "Zed is a code editor. Prior to 0.229.0, Zed's terminal tool permission system can be bypassed via bash arithmetic expansion $((...)), allowing execution of arbitrary commands nested inside an allowlisted command like echo. This vulnerability is fixed in 0.229.0.",
"evidence": "osv:CVE-2026-44466",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-44466",
"aliases": [
"CVE-2026-44466",
"GHSA-c99f-97vf-4h5h"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/zed-industries/zed",
"type": "GIT",
"events": [
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{
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{
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"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
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{
"cpe": "cpe:2.3:a:zed:zed:*:*:*:*:*:*:*:*",
"range": [
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"source": "CPE_RANGE"
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"database_specific": {
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}
}
],
"modified": "2026-10-28T02:30:49.059643348Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44466.json",
"https://github.com/zed-industries/zed/security/advisories/GHSA-c99f-97vf-4h5h",
"https://nvd.nist.gov/vuln/detail/CVE-2026-44466"
],
"provider_metadata": {
"cwe_ids": [
"CWE-78"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44466.json"
}
},
"related_cves": [
{
"value": "CVE-2026-44466",
"evidence": "/id"
}
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 517483,
"published_at": "2026-05-28T16:16:05.409+00:00"
}