CVE-2025-62353Public exploitNetwork attack vector

Arbitrary file access via unrestricted workspace paths

Published Oct 17, 2025 · Updated Oct 17, 2025

Path traversal in Windsurf 1.12.12 and earlier allows remote attackers to read and write arbitrary local files through its file tools. Cascade accepts prompt-supplied workspace paths and passes out-of-project paths to its read and write_to_file tools without enforcing the project boundary. Processing an attacker-controlled project README is sufficient to access files with the IDE user's privileges even when Auto Execution is off and write_to_file is denied.

CVSS severity9.8
Critical
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Windsurf 1.12.12 and earlier allows remote attackers to read and write arbitrary local files through its file tools. Cascade accepts prompt-supplied workspace paths and passes out-of-project paths to its read and write_to_file tools without enforcing the project boundary. Processing an attacker-controlled project README is sufficient to access files with the IDE user's privileges even when Auto Execution is off and write_to_file is denied.

The record

CVE
CVE-2025-62353
Published
Oct 17, 2025
Updated
Oct 17, 2025
Vendor
Windsurf
Product
Windsurf
Classifications
CWE-22, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 2025Record 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=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Windsurf · Windsurfversion=*

Published CVSS scores

9.8HiddenLayerCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1204.002Malicious File

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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