zed-industries zed up to 0.228.x Environment Variable incomplete blacklist

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in zed-industries zed up to 0.228.x. This vulnerability affects unknown code of the component Environment Variable Handler. The manipulation leads to incomplete blacklist. This vulnerability is traded as CVE-2026-44463. An attack has to be approached locally. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in zed-industries zed up to 0.228.x and classified as critical. This issue affects some unknown functionality of the component Environment Variable Handler. The manipulation with an unknown input leads to a incomplete blacklist vulnerability. Using CWE to declare the problem leads to CWE-184. The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete, leading to resultant weaknesses. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Zed is a code editor. Prior to 0.229.0, Zed's terminal tool permission system can be bypassed by prepending environment variable assignments to allowlisted commands, hijacking program behavior (e.g., PAGER) to execute arbitrary code. This vulnerability is fixed in 0.229.0.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-44463 since 05/06/2026. The exploitation is known to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1562.006 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 318002 (Linux Distros Unpatched Vulnerability : CVE-2026-44463), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.229.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (318002). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.6
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Incomplete blacklist
CWE: CWE-184 / CWE-183 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
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Nessus ID: 318002
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-44463

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: zed 0.229.0

Timelineinfo

05/06/2026 CVE reserved
05/28/2026 +22 days Advisory disclosed
05/28/2026 +0 days VulDB entry created
06/01/2026 +4 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-c3g6-c3ff-69cg
Status: Confirmed

CVE: CVE-2026-44463 (🔒)
GCVE (CVE): GCVE-0-2026-44463
GCVE (VulDB): GCVE-100-366809

Entryinfo

Created: 05/28/2026 20:05
Updated: 06/01/2026 03:28
Changes: 05/28/2026 20:05 (65), 06/01/2026 03:28 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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