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[Snyk] Security upgrade undici from 7.27.2 to 7.29.1 - #13237

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[Snyk] Security upgrade undici from 7.27.2 to 7.29.1#13237
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@sestinj sestinj commented Sep 6, 2026

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Snyk has created this PR to fix 6 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

  • binary/package.json

Vulnerabilities that will be fixed with an upgrade:

Issue Score
critical severity Improper Certificate Validation
SNYK-JS-UNDICI-19635218
  741  
high severity Uncaught Exception
SNYK-JS-UNDICI-19635210
  721  
high severity Use of Persistent Cookies Containing Sensitive Information
SNYK-JS-UNDICI-19635216
  701  
high severity Missing Release of Resource after Effective Lifetime
SNYK-JS-UNDICI-19635206
  696  
high severity Allocation of Resources Without Limits or Throttling
SNYK-JS-UNDICI-19635208
  696  
high severity Uncaught Exception
SNYK-JS-UNDICI-19635222
  696  

Breaking Change Risk

Merge Risk: Medium

Notice: This assessment is enhanced by AI.


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🦉 Allocation of Resources Without Limits or Throttling
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@sestinj
sestinj requested a review from a team as a code owner September 6, 2026 09:31
@sestinj

sestinj commented Sep 6, 2026

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Merge Risk: Medium

This upgrade from undici 7.27.2 to 7.29.1 is a minor version update that includes important security fixes and stricter parsing logic.

Key Changes:

  • Stricter Cookie Parsing (v7.28.0): Addresses CVE-2026-11525 by enforcing stricter validation of the SameSite attribute in Set-Cookie headers to match RFC 6265 specifications. Previously, non-standard values were silently accepted and could lead to a weaker security policy (e.g., SameSite=StrictLax was parsed as Lax). This is now corrected, but could be a behavioral change if your application relies on cookies from a non-compliant server.

  • Cache Interceptor Fixes (v7.29.0): Resolves vulnerabilities in the cache interceptor that could lead to information disclosure between users or a parser crash when handling malformed Cache-Control: private directives.

  • BalancedPool Security Fix (v7.29.1): Patches CVE-2026-84961, where custom function-based TLS options (like checkServerIdentity) for BalancedPool were silently ignored. This fix is critical for applications using BalancedPool with custom TLS configurations.

Assessment:

The risk is assessed as medium. While primarily consisting of security patches and bug fixes, the change to stricter cookie parsing could potentially affect applications that rely on the previous, more lenient behavior. Verification is recommended to ensure that interactions with servers providing Set-Cookie headers are not negatively impacted.

Source: GitHub Releases

Notice 🤖: This content was augmented using artificial intelligence. AI-generated content may contain errors and should be reviewed for accuracy before use.

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