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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-55079 Detail

Description

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 `DataUpload` message without an upper-bound check. Although the DRPC wire limit is 4 MiB, the `FileSize` value itself was unconstrained. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 validates `FileSize` against an upper bound (`MaxFileSize = 100 MiB`) before allocation. As a workaround, restrict access to the provisioner daemon serve endpoint to trusted provisioner daemon service accounts.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/coder/coder/pull/25710 GitHub, Inc. Issue Tracking  Patch 
https://github.com/coder/coder/releases/tag/v2.29.17 GitHub, Inc. Release Notes 
https://github.com/coder/coder/releases/tag/v2.32.7 GitHub, Inc. Release Notes 
https://github.com/coder/coder/releases/tag/v2.33.8 GitHub, Inc. Release Notes 
https://github.com/coder/coder/releases/tag/v2.34.2 GitHub, Inc. Release Notes 
https://github.com/coder/coder/security/advisories/GHSA-f962-qm93-mj4c GitHub, Inc. Patch  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-789 Memory Allocation with Excessive Size Value GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-55079
NVD Published Date:
07/07/2026
NVD Last Modified:
07/08/2026
Source:
GitHub, Inc.