CVE-2026-50548Network attack vector

Sandbox escape via agent-controlled working directory

Published Jun 25, 2026 · Updated Jun 25, 2026

Path traversal in Anysphere Cursor before 3.0 allows remote attackers to escape the terminal sandbox and execute code. The agent can replace working_directory with a sensitive path, causing the sandbox to grant write access outside the workspace and permitting replacement of the cursorsandbox helper. The path is reachable without further user interaction after a benign prompt, and resulting commands run with the local user's privileges.

CVSS severity9.3
Critical
EPSS probability1.01%
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 Anysphere Cursor before 3.0 allows remote attackers to escape the terminal sandbox and execute code. The agent can replace working_directory with a sensitive path, causing the sandbox to grant write access outside the workspace and permitting replacement of the cursorsandbox helper. The path is reachable without further user interaction after a benign prompt, and resulting commands run with the local user's privileges.

The record

CVE
CVE-2026-50548
Published
Jun 25, 2026
Updated
Jun 25, 2026
Vendor
Anysphere
Product
Cursor
Classifications
CWE-22, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 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=< 3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Anysphere · Cursorversion=< 3.0

Published CVSS scores

9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8NIST NVDCVSS: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.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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