Bug 2543513 (CVE-2026-102829)

Summary: CVE-2026-102829 simple-git: simple-git: `VISUAL` editor environment variable is omitted from unsafe editor detection
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: anujha, aschwart, asoldano, aszczucz, bbaranow, bmaxwell, boliveir, bstansbe, dlofthou, drichtar, gbenhaim, istudens, ivassile, iweiss, lchilton, mosmerov, mposolda, msvehla, niyer, nwallace, pberan, pesilva, pjindal, pmackay, rhel-process-autobot, rmartinc, rstancel, sfeifer, ssilvert, sthorger, thjenkin, twaugh, vdosoudi, vmuzikar, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in simple-git. The software fails to include the VISUAL environment variable in its unsafe editor detection checks. If a consuming application accepts untrusted environment variables, an attacker can specify a malicious program that Git launches during interactive operations, leading to arbitrary code execution with the privileges of the Node.js process.
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Description OSIDB Bzimport 2026-09-29 19:01:55 UTC 
simple-git, an interface for running git commands in any node.js application, enables applications to execute Git operations from JavaScript. Prior to 2.0.1 of the argv-parser package, parseEnv omits VISUAL from GitEnvKeys, so prepareEnv drops the value before vulnerabilityCheck can classify it as allowUnsafeEditor. A consuming application that forwards attacker-influenced environment values can therefore allow Git to invoke an attacker-selected editor during operations such as commit amendment or interactive rebase when no higher-priority editor setting overrides VISUAL and Git's terminal prerequisites are met. The executable runs with the privileges of the Node.js process. This issue is fixed in argv-parser 2.0.1.