aws-cdk-lib-2.241.0.tgz: 2 vulnerabilities (highest severity is: 6.5)

[mend-for-gitlite.zycloud.tk]

Vulnerable Library - aws-cdk-lib-2.241.0.tgz

Path to dependency file: /testing/aws-testing-cdk/package.json

Path to vulnerable library: /testing/aws-testing-cdk/package.json,/release/staging-resources-cdk/package.json

Found in HEAD commit: 73b809ab2966482ce9b0e8fb5bfc8d3d9da781bc

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (aws-cdk-lib version)	Remediation Possible**
CVE-2026-33750	Medium	6.5	brace-expansion-5.0.3.tgz	Transitive	N/A*	❌
CVE-2026-33532	Medium	4.3	yaml-1.10.2.tgz	Transitive	N/A*	❌

*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.

**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation

Details

CVE-2026-33750

Vulnerable Library - brace-expansion-5.0.3.tgz

Brace expansion as known from sh/bash

Library home page: https://registry.npmjs.org/brace-expansion/-/brace-expansion-5.0.3.tgz

Path to dependency file: /testing/aws-testing-cdk/package.json

Path to vulnerable library: /testing/aws-testing-cdk/package.json

Dependency Hierarchy:

• aws-cdk-lib-2.241.0.tgz (Root Library)
  • minimatch-10.2.4.tgz
    • ❌ brace-expansion-5.0.3.tgz (Vulnerable Library)

Found in HEAD commit: 73b809ab2966482ce9b0e8fb5bfc8d3d9da781bc

Found in base branch: main

Vulnerability Details

The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to versions 5.0.5, 3.0.2, 2.0.3, and 1.1.13, a brace pattern with a zero step value (e.g., "{1..2..0}") causes the sequence generation loop to run indefinitely, making the process hang for seconds and allocate heaps of memory. Versions 5.0.5, 3.0.2, 2.0.3, and 1.1.13 fix the issue. As a workaround, sanitize strings passed to "expand()" to ensure a step value of "0" is not used.

Publish Date: 2026-03-27

URL: CVE-2026-33750

CVSS 3 Score Details (6.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2026-03-27

Fix Resolution: https://github.com/juliangruber/brace-expansion.git - v2.0.3,https://github.com/juliangruber/brace-expansion.git - v3.0.2,https://github.com/juliangruber/brace-expansion.git - v5.0.5,https://github.com/juliangruber/brace-expansion.git - v1.1.13

CVE-2026-33532

Vulnerable Library - yaml-1.10.2.tgz

JavaScript parser and stringifier for YAML

Library home page: https://registry.npmjs.org/yaml/-/yaml-1.10.2.tgz

Path to dependency file: /testing/aws-testing-cdk/package.json

Path to vulnerable library: /testing/aws-testing-cdk/package.json,/release/staging-resources-cdk/package.json

Dependency Hierarchy:

• aws-cdk-lib-2.241.0.tgz (Root Library)
  • ❌ yaml-1.10.2.tgz (Vulnerable Library)

Found in HEAD commit: 73b809ab2966482ce9b0e8fb5bfc8d3d9da781bc

Found in base branch: main

Vulnerability Details

"yaml" is a YAML parser and serialiser for JavaScript. Parsing a YAML document with a version of "yaml" on the 1.x branch prior to 1.10.3 or on the 2.x branch prior to 2.8.3 may throw a RangeError due to a stack overflow. The node resolution/composition phase uses recursive function calls without a depth bound. An attacker who can supply YAML for parsing can trigger a "RangeError: Maximum call stack size exceeded" with a small payload (~2–10 KB). The "RangeError" is not a "YAMLParseError", so applications that only catch YAML-specific errors will encounter an unexpected exception type. Depending on the host application's exception handling, this can fail requests or terminate the Node.js process. Flow sequences allow deep nesting with minimal bytes (2 bytes per level: one "[" and one "]"). On the default Node.js stack, approximately 1,000–5,000 levels of nesting (2–10 KB input) exhaust the call stack. The exact threshold is environment-dependent (Node.js version, stack size, call stack depth at invocation). Note: the library's "Parser" (CST phase) uses a stack-based iterative approach and is not affected. Only the compose/resolve phase uses actual call-stack recursion. All three public parsing APIs are affected: "YAML.parse()", "YAML.parseDocument()", and "YAML.parseAllDocuments()". Versions 1.10.3 and 2.8.3 contain a patch.

Publish Date: 2026-03-26

URL: CVE-2026-33532

CVSS 3 Score Details (4.3)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2026-03-25

Fix Resolution: https://github.com/eemeli/yaml.git - v1.10.3,https://github.com/eemeli/yaml.git - v2.8.3