Missing Release of Memory after Effective Lifetime Affecting lasso package, versions [,2.9.0)


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

Exploit Maturity
Proof of Concept

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  • Snyk IDSNYK-UNMANAGED-LASSO-13843665
  • published6 Nov 2025
  • disclosed5 Nov 2025
  • creditKeane O'Kelley

Introduced: 5 Nov 2025

NewCVE-2025-46784  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade lasso to version 2.9.0 or higher.

Overview

Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime in the lasso_node_init_from_message_with_format() function. An attacker can exhaust system memory by sending a specially crafted SAML response.

CVSS Base Scores

version 4.0
version 3.1