NVD / CVE Program· CNA GitHub_M

CVE-2026-24053: Cluade Code has a Path Restriction Bypass via ZSH Clobber which Allows Arbitrary File Writes

HighCVSS 7.7 · v4.0—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 30/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.51% (FIRST EPSS).
Anyone who can reach it over the internet can trigger it. No account or password is required. No special conditions are required; it is repeatable.
Fixed version: anthropics claude-code 2.0.74.

Low priority for now. Upgrade to anthropics claude-code 2.0.74 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Claude Code is an agentic coding tool. Prior to version 2.0.74, due to a Bash command validation flaw in parsing ZSH clobber syntax, it was possible to bypass directory restrictions and write files outside the current working directory without user permission prompts. Exploiting this required the user to use ZSH and the ability to add untrusted content into a Claude Code context window. This issue has been patched in version 2.0.74.

GHSA-q728-gf8j-w49r

Published: Feb 3, 2026
Updated: Jun 17, 2026
EPSS: 0.5% · 44th percentile
CWE: CWE-22

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 30 / 40 · 7.7 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.5%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · GitHub_M: 7.7; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
anthropic	claude code	cpe:2.3:a:anthropic:claude_code

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

anthropics claude-code
- < 2.0.74affected

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

anthropic claude codebefore 2.0.74

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
npm	@anthropic-ai/claude-code	before 2.0.74	2.0.74

Same product

anthropic: all records

Other highest-scoring records for the same primary product.

CVE-2025-59536Claude Code's startup trust dialog could lead to Command Execution attack
42Plan
CVE-2025-66032Claude Code Command Validation Bypass Allows Arbitrary Code Execution
34Monitor
CVE-2025-64755@anthropic-ai/claude-code has Sed Command Validation Bypass that Allows Arbitrary File Writes
34Monitor

Published before and after this one in the same product

← EarlierCVE-2026-21852Jan 21, 2026 · Claude Code Leaks Data via Malicious Environment Configuration Before Trust Confirmation
29Monitor
← EarlierCVE-2026-24052Feb 3, 2026 · Claude Code has a Domain Validation Bypass which Allows Automatic Requests to Attacker-Controlled Domains
28Monitor
Later →CVE-2026-24887Feb 3, 2026 · Claude Code has a Command Injection in find Command Bypasses User Approval Prompt
30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
anthropics claude-code	2.0.74 · description	Vendor (CNA)
npm:@anthropic-ai/claude-code	2.0.74	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2026-3986177 days apartClaude Code: Sandbox Escape via Symlink Following Allows Arbitrary File Write Outside Workspace
30Monitor
CVE-2026-55607146 days apartClaude Code: Sandbox Escape via Git Worktree Path Confusion Allows Unsandboxed Code Execution
30Monitor
CVE-2025-54794183 days apartClaude Code Research Preview has a Path Restriction Bypass which could allow unauthorized file access
30Monitor

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit.

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: P
Scope: X

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const file = path.join(ROOT, req.query.name);
2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);
2if (!file.startsWith(ROOT + path.sep)) {
3  return res.sendStatus(400);
4}
5res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log (1)

Fix✗ → ✓Sep 28, 2026, 10:46 PM UTC

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References

github.com/anthropics/claude-code/security/advisories/GHSA-q728-gf8j-w49r

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records