GHSA-j443-wcqq-xprh
Critical · 10.0Terraform Provider for SendGrid: TLS Session Resumption Bypasses Certificate Authority Trust Store Modifications in Go
CVSS
10.0
EPSS
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Published
Mar 11, 2026
CISA due date
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The record
A critical vulnerability has been identified at https://security.snyk.io/package/linux/chainguard:latest/terraform-provider-sendgrid, associated with the underlying Go version. If the server's TLS configuration is mutated between connections — for example, a CA is removed from the trusted list via `Config.Clone()` combined with modification or `GetConfigForClient` — the resumed handshake still succeeds using the cached session. The certificate is not re-checked against the updated CA list. As a result, a client whose CA was revoked or removed between the first and second connection could still establish a connection on the resumed session.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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