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CVE-2026-50548

Anysphere Cursor remote code execution

9.8 CRITICALEPSS 1.01%
  1. Published25 Jun 2026

Description

Cursor is a code editor built for programming with AI. Prior to 3.0, Cursor runs agent terminal commands in a sandbox by default, and the sandbox grants write access to the command's working directory. A flaw was identified in how the agent could modify the working_directory parameter, which could cause the sandbox to include writable paths outside the intended workspace. A malicious agent could set working_directory to a sensitive location and write arbitrary files outside the workspace under the user's privileges. This enables non-sandboxed Remote Code Execution — for example by overwriting the cursorsandbox helper so later commands run unsandboxed — with no user interaction beyond a benign prompt. This vulnerability is fixed in 3.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Anysphere Cursor< 3.0

Remediation

Fixed in
Anysphere Cursor≥ 3.0

References

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Frequently asked

Is CVE-2026-50548 being actively exploited?

CVE-2026-50548 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.01%.

How severe is CVE-2026-50548?

CVE-2026-50548 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.01% probability of exploitation.

Which products are affected by CVE-2026-50548?

Affected products include Anysphere Cursor.

How do I fix CVE-2026-50548?

Upgrade affected software to a fixed version, for example Anysphere Cursor 3.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-50548 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.