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6 vulnerabilities found for Claude Agent SDK for Python by Anthropic
CVE-2026-35022 (GCVE-0-2026-35022)
Vulnerability from nvd – Published: 2026-04-06 18:59 – Updated: 2026-04-13 20:07 Disputed
VLAI?
Title
Anthropic Claude Code & Agent SDK OS Command Injection via Authentication Helper
Summary
Anthropic Claude Code CLI and Claude Agent SDK contain an OS command injection vulnerability in authentication helper execution where helper configuration values are executed using shell=true without input validation. Attackers who can influence authentication settings can inject shell metacharacters through parameters like apiKeyHelper, awsAuthRefresh, awsCredentialExport, and gcpAuthRefresh to execute arbitrary commands with the privileges of the user or automation environment, enabling credential theft and environment variable exfiltration.
Severity ?
9.8 (Critical)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Anthropic | Claude Code |
Affected:
0 , ≤ 2.1.91
(semver)
|
|||||||
|
|||||||||
Credits
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CVE-2026-35021 (GCVE-0-2026-35021)
Vulnerability from nvd – Published: 2026-04-06 18:59 – Updated: 2026-04-13 20:07 Disputed
VLAI?
Title
Anthropic Claude Code & Agent SDK OS Command Injection via promptEditor.ts
Summary
Anthropic Claude Code CLI and Claude Agent SDK contain an OS command injection vulnerability in the prompt editor invocation utility that allows attackers to execute arbitrary commands by crafting malicious file paths. Attackers can inject shell metacharacters such as $() or backtick expressions into file paths that are interpolated into shell commands executed via execSync. Although the file path is wrapped in double quotes, POSIX shell semantics (POSIX §2.2.3) do not prevent command substitution within double quotes, allowing injected expressions to be evaluated and resulting in arbitrary command execution with the privileges of the user running the CLI.
Severity ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Anthropic | Claude Code |
Affected:
0 , ≤ 2.1.91
(semver)
|
|||||||
|
|||||||||
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CVE-2026-35020 (GCVE-0-2026-35020)
Vulnerability from nvd – Published: 2026-04-06 18:58 – Updated: 2026-04-13 20:08 Disputed
VLAI?
Title
Anthropic Claude Code & Agent SDK OS Command Injection via TERMINAL Environment Variable
Summary
Anthropic Claude Code CLI and Claude Agent SDK contain an OS command injection vulnerability in the command lookup helper and deep-link terminal launcher that allows local attackers to execute arbitrary commands by manipulating the TERMINAL environment variable. Attackers can inject shell metacharacters into the TERMINAL variable which are interpreted by /bin/sh when the command lookup helper constructs and executes shell commands with shell=true. The vulnerability can be triggered during normal CLI execution as well as via the deep-link handler path, resulting in arbitrary command execution with the privileges of the user running the CLI.
Severity ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Anthropic | Claude Code |
Affected:
0 , ≤ 2.1.91
(semver)
|
|||||||
|
|||||||||
Credits
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CVE-2026-35022 (GCVE-0-2026-35022)
Vulnerability from cvelistv5 – Published: 2026-04-06 18:59 – Updated: 2026-04-13 20:07 Disputed
VLAI?
Title
Anthropic Claude Code & Agent SDK OS Command Injection via Authentication Helper
Summary
Anthropic Claude Code CLI and Claude Agent SDK contain an OS command injection vulnerability in authentication helper execution where helper configuration values are executed using shell=true without input validation. Attackers who can influence authentication settings can inject shell metacharacters through parameters like apiKeyHelper, awsAuthRefresh, awsCredentialExport, and gcpAuthRefresh to execute arbitrary commands with the privileges of the user or automation environment, enabling credential theft and environment variable exfiltration.
Severity ?
9.8 (Critical)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Anthropic | Claude Code |
Affected:
0 , ≤ 2.1.91
(semver)
|
|||||||
|
|||||||||
Credits
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CVE-2026-35021 (GCVE-0-2026-35021)
Vulnerability from cvelistv5 – Published: 2026-04-06 18:59 – Updated: 2026-04-13 20:07 Disputed
VLAI?
Title
Anthropic Claude Code & Agent SDK OS Command Injection via promptEditor.ts
Summary
Anthropic Claude Code CLI and Claude Agent SDK contain an OS command injection vulnerability in the prompt editor invocation utility that allows attackers to execute arbitrary commands by crafting malicious file paths. Attackers can inject shell metacharacters such as $() or backtick expressions into file paths that are interpolated into shell commands executed via execSync. Although the file path is wrapped in double quotes, POSIX shell semantics (POSIX §2.2.3) do not prevent command substitution within double quotes, allowing injected expressions to be evaluated and resulting in arbitrary command execution with the privileges of the user running the CLI.
Severity ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Anthropic | Claude Code |
Affected:
0 , ≤ 2.1.91
(semver)
|
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|
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Credits
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CVE-2026-35020 (GCVE-0-2026-35020)
Vulnerability from cvelistv5 – Published: 2026-04-06 18:58 – Updated: 2026-04-13 20:08 Disputed
VLAI?
Title
Anthropic Claude Code & Agent SDK OS Command Injection via TERMINAL Environment Variable
Summary
Anthropic Claude Code CLI and Claude Agent SDK contain an OS command injection vulnerability in the command lookup helper and deep-link terminal launcher that allows local attackers to execute arbitrary commands by manipulating the TERMINAL environment variable. Attackers can inject shell metacharacters into the TERMINAL variable which are interpreted by /bin/sh when the command lookup helper constructs and executes shell commands with shell=true. The vulnerability can be triggered during normal CLI execution as well as via the deep-link handler path, resulting in arbitrary command execution with the privileges of the user running the CLI.
Severity ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
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|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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|---|---|---|---|---|---|---|---|---|---|
| Anthropic | Claude Code |
Affected:
0 , ≤ 2.1.91
(semver)
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