CVE-2025-59041

Arbitrary command execution via unescaped Git email

Published Sep 10, 2025 · Updated Oct 15, 2025

Code injection in Anthropic Claude Code before 1.0.105 allows attackers to execute arbitrary commands by opening a malicious Git workspace. During startup, the project-load path interpolates the workspace's git config user.email value into a shell command without escaping it. A user must start Claude Code in the attacker-controlled repository, and execution occurs before the workspace trust dialog is accepted.

CVSS severity8.7
High
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Anthropic Claude Code before 1.0.105 allows attackers to execute arbitrary commands by opening a malicious Git workspace. During startup, the project-load path interpolates the workspace's git config user.email value into a shell command without escaping it. A user must start Claude Code in the attacker-controlled repository, and execution occurs before the workspace trust dialog is accepted.

The record

CVE
CVE-2025-59041
Published
Sep 10, 2025
Updated
Oct 15, 2025
Vendor
Anthropic
Product
Claude Code
Classifications
CWE-78, CWE-94, T1059, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.0.105

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Anthropic · Claude Codeversion=< 1.0.105

Published CVSS scores

8.7GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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