CVE-2026-25725 — Trust Boundary Violation in Claude-code
Severity
7.7HIGHNVD
EPSS
0.0%
top 93.95%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedFeb 6
Latest updateApr 11
Description
Claude Code is an agentic coding tool. Prior to version 2.1.2, Claude Code's bubblewrap sandboxing mechanism failed to properly protect the .claude/settings.json configuration file when it did not exist at startup. While the parent directory was mounted as writable and .claude/settings.local.json was explicitly protected with read-only constraints, settings.json was not protected if it was missing. This allowed malicious code running inside the sandbox to create this file and inject persistent h…
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
Affected Packages3 packages
🔴Vulnerability Details
3VulDB▶
Anthropic claude-code up to 2.1.1 Bubblewrap Sandboxing .claude/settings.json trust boundary violation (GHSA-ff64-7w26-62rf / Nessus ID 305986)↗2026-04-11
GHSA
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OSV
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