GCD AI RADAR
incidents/AIR-2026-0448

CVE-2026-24053: Claude Code path restriction bypass via ZSH clobber

Attack on AI2 Disclosed vulnerabilityInfrastructure vulnerabilityPrompt injection

A Bash command validation flaw in parsing ZSH clobber syntax permitted directory restriction bypasses and arbitrary file writes. Exploitation required injecting untrusted content into the context window and using ZSH.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

Details

type
Attack on AI
An AI model, agent or AI-powered product was the thing exploited, abused or leaked.
categories
  • Infrastructure vulnerabilityprimary
    CVEs and advisories in AI frameworks, inference servers, MCP servers, AI developer tools and hosting stacks.
  • Prompt injection
    Untrusted content (web pages, documents, emails, tool output) steers a model into ignoring its instructions.
owasp llm top 10
mitre atlas
Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
severity
2 · Disclosed vulnerability
CVE or vendor advisory, patched or patchable, no confirmed exploitation.
targets
Anthropic
products
Claude Code
incident date
3 Feb 2026
first reported
3 Feb 2026
origin
GitHub Advisory Database
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
classifier confidence
0.95 · published at or above 0.80; see the methodology
tags
CVE-2026-24053 · arbitrary-file-write
record
created 2026-10-18 07:00Z · updated 2026-10-18 10:04Z · json

Sources · 2

  1. 2026-02-03
    CVE-2026-24053: Claude Code has a Path Restriction Bypass via ZSH Clobber which Allows Arbitrary File Writes
    GitHub Advisory Database · github.com/advisories/GHSA-q728-gf8j-w49r
  2. 2026-02-03
    CVE-2026-24053: Claude Code is an agentic coding tool.
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-24053

Titles and links belong to their publishers. The summary above is written by GCD AI RADAR in its own words; data is CC BY-SA 4.0.

Related incidents