CVE-2026-78659 Affecting terraform-provider-sendgrid package, versions <1.0.1-r32


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.57% (46th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CHAINGUARDLATEST-TERRAFORMPROVIDERSENDGRID-20784513
  • published10 Oct 2026
  • disclosed8 Oct 2026

Introduced: 8 Oct 2026

NewCVE-2026-78659  (opens in a new tab)

How to fix?

Upgrade Chainguard terraform-provider-sendgrid to version 1.0.1-r32 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream terraform-provider-sendgrid package and not the terraform-provider-sendgrid package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

When "Trailer" headers are sent by a client, the HTTP server internally uses the header values to populate the Request.Trailer map passed to the server handler. Because Request.Trailer is a map, each entry incurs memory overhead. For HTTP/2 servers, a malicious client can exploit this by sending a "Trailer" header that declares a large number of fields, causing the server to allocate a disproportionate amount of memory while bypassing Server.MaxHeaderValueCount and Server.MaxHeaderBytes limits. This exploit is not applicable for HTTP/1 servers, which do not support multiplexing a large number of requests over one TCP connection, and whose Server.MaxHeaderBytes are calculated differently.

CVSS Base Scores

version 3.1