CVE-2026-55079 Coder's unbounded memory allocation in provisioner file upload allows authenticated denial of service

Coder allows organizations to provision remote development environments via Terraform. Starting in version 2.24.0 and prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, NewDataBuilder in provisionersdk/proto/dataupload.go allocated a byte slice using the client-supplied FileSize from a...

Coder's unbounded memory allocation in provisioner file upload allows authenticated denial of service

Summary NewDataBuilder in provisionersdk/proto/dataupload.go allocated a byte slice using the client-supplied FileSize from a DataUpload message without an upper-bound check. Although the DRPC wire limit is 4 MiB, the FileSize value itself was unconstrained Impact An authenticated user able to...

GHSA-F962-QM93-MJ4C Coder's unbounded memory allocation in provisioner file upload allows authenticated denial of service

Summary NewDataBuilder in provisionersdk/proto/dataupload.go allocated a byte slice using the client-supplied FileSize from a DataUpload message without an upper-bound check. Although the DRPC wire limit is 4 MiB, the FileSize value itself was unconstrained Impact An authenticated user able to...

PT-2026-56069

Name of the Vulnerable Software and Affected Versions coder versions prior to 2.34.2 coder versions prior to 2.33.8 coder versions prior to 2.32.7 coder versions prior to 2.29.17 Description An authenticated user can trigger a denial of service by sending a small message with an excessively large...