Claude Code is an agentic coding tool. Prior to version 2.0.57, Claude Code failed to properly validate directory changes when combined with write operations to protected folders. By using the cd command to navigate into sensitive directories like .claude, it was possible to bypass write protection and create or modify files without user confirmation. Reliably exploiting this required the ability to add untrusted content into a Claude Code context window. This issue has been patched in version 2.0.57.
CVE-2026-25722
This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 52% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.1
- EG Score
- 9.1(medium)
- EPSS
- 27.9%
- KEV
- Not listed
Published
February 6, 2026
Last Modified
February 9, 2026
Advisory Details (1)
Auto-updated Jun 7, 2026Command Injection via Directory Change Bypasses Write Protection · Advisory · anthropics/claude-code · GitHub
https://github.com/anthropics/claude-code/security/advisories/GHSA-66q4-vfjg-2qhhAffected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| @anthropic-ai/claude-code | — | 2.0.57 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 11× in last 7d / 46× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-15 16:57 UTCEPSS rescore
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- 2026-06-28 04:56 UTCEPSS rescore
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- 2026-06-08 05:55 UTCEG score recompute
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- 2026-05-29 14:28 UTCEG score recompute
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Related CVEs(same CWE)
Same CWE
10 shownCWE-20 · CWE-78
- CVE-2002-2444EG 9.8CRITICAL
- CVE-1999-0043EG 9.8EPSS 99%CRITICAL
- CVE-2002-1359NVD 0.0EG 9.0EPSS 100%NONE
- CVE-2002-0061NVD 0.0EG 9.0EPSS 99%NONE
- CVE-2000-0380NVD 0.0EG 9.0EPSS 98%NONE
- CVE-1999-0067NVD 0.0EG 9.0EPSS 100%NONE
- CVE-2000-0258EG 7.5EPSS 97%HIGH
- CVE-2002-2443EG 0.0EPSS 93%NONE
- CVE-2002-2433EG 0.0NONE
- CVE-2003-1569EG 0.0NONE
Frequently asked(5)
What is CVE-2026-25722?
When was CVE-2026-25722 disclosed?
Is CVE-2026-25722 actively exploited?
What is the CVSS score of CVE-2026-25722?
How do I remediate CVE-2026-25722?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-25722
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