CVE-2026-25724Public exploitNetwork attack vector

Restricted file disclosure via symlink resolution bypass

Published Feb 6, 2026 · Updated Feb 6, 2026

Authorization bypass in Anthropic Claude Code before 2.1.7 allows remote attackers to read denied local files through symbolic links. The file-access permission check evaluates the requested symlink path against settings.json deny rules without enforcing the resolved target path. Exploitation requires a denied target, an accessible symlink, and user-triggered analysis of attacker-controlled repository content, exposing files that the configured policy was intended to block.

CVSS severity2.3
Low
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Anthropic Claude Code before 2.1.7 allows remote attackers to read denied local files through symbolic links. The file-access permission check evaluates the requested symlink path against settings.json deny rules without enforcing the resolved target path. Exploitation requires a denied target, an accessible symlink, and user-triggered analysis of attacker-controlled repository content, exposing files that the configured policy was intended to block.

The record

CVE
CVE-2026-25724
Published
Feb 6, 2026
Updated
Feb 6, 2026
Vendor
Anthropic
Product
Claude Code
Classifications
CWE-61, CWE-285, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.1.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Anthropic · Claude Codeversion=< 2.1.7

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
2.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-61UNIX Symbolic Link (Symlink) Following
CWE-285Improper Authorization
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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