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Vulnerabilities

Vulnerability · CVE-2025-69256

The Serverless Framework is a framework for using AWS Lambda and other managed cloud services to build applications.

Published Dec 30, 2025 · catalog updated Dec 30, 2025 · The Serverless Framework is

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-69256. EPSS is 2.38%. Act only if a listed version of The Serverless Framework is is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The Serverless Framework is).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.38%
Remediation
Version ranges on file
Affected products
vendor serverless serverless 4.29.0, < 4.29.3

The Serverless Framework is a framework for using AWS Lambda and other managed cloud services to build applications. Starting in version 4.29.0 and prior to version 4.29.3, a command injection vulnerability exists in the Serverless Framework's built-in MCP server package (@serverless/mcp). This vulnerability only affects users of the experimental MCP server feature (serverless mcp), which represents less than 0.1% of Serverless Framework users. The core Serverless Framework CLI and deployment functionality are not affected. The vulnerability is caused by the unsanitized use of input parameters

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor serverless serverless 4.29.0, < 4.29.34.29.0, < 4.29.3

How to fix CVE-2025-69256

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-69256. EPSS is 2.38%. Act only if a listed version of The Serverless Framework is is installed.

Which versions are affected?

Compare what you have installed with serverless serverless 4.29.0, < 4.29.3 4.29.0, < 4.29.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 2.38%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 30, 2025 · EUVD

    Detected

    The Serverless Framework is a framework for using AWS Lambda and other managed cloud services to build applications. Starting in version 4.29.0 and prior to version 4.29.3, a command injection vulnerability exists in the Serverless Framework's built-in MCP server package (@serverless/mcp). This vulnerability only affects users of the experimental MCP server feature (serverless mcp), which represen

  2. Dec 30, 2025 · EUVD

    Updated

    The Serverless Framework is a framework for using AWS Lambda and other managed cloud services to build applications. Starting in version 4.29.0 and prior to version 4.29.3, a command injection vulnerability exists in the Serverless Framework's built-in MCP server package (@serverless/mcp). This vulnerability only affects users of the experimental MCP server feature (serverless mcp), which represen

Sources

  • CVE.orgVulnerability recordCVE-2025-69256

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-69256

    30-day exploitation probability 2.38%

    first.org
  • EUVDVulnerability recordEUVD-2025-205851

    The Serverless Framework is a framework for using AWS Lambda and other managed cloud services to build applications. Starting in version 4.29.0 and prior to version 4.29.3, a command injection vulnerability exists in the Serverless Framework's built-in MCP server package (@server

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 2, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 2, 2026
  • CVE.orgNov 2, 2026
  • EUVDNov 1, 2026