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CVE-2026-55434
Published:July 07, 2026
Updated:July 21, 2026
Coder allows organizations to provision remote development environments via Terraform. Starting in version 2.33.0 and prior to versions 2.33.8 and 2.34.2, AI Bridge provider handlers read request bodies with "io.ReadAll" without a maximum size so an authenticated user with AI Bridge access could send an arbitrarily large body and exhaust memory. Exploitation requires authenticated access to the AI Bridge endpoints and the impact is limited to availability (denial of service). Versions 2.33.8 and 2.34.2 patch the issue. No known workarounds are available.
Affected Packages
https://github.com/coder/coder.git (GITHUB):
Affected version(s) >=v2.34.0 <v2.34.2
Fix Suggestion:
Update to version v2.34.2
https://github.com/coder/coder.git (GITHUB):
Affected version(s) >=v2.33.0 <v2.33.8
Fix Suggestion:
Update to version v2.33.8
github.com/coder/coder/v2 (GO):
Affected version(s) >=v2.33.0 <v2.33.8
Fix Suggestion:
Update to version v2.33.8
github.com/coder/coder/v2 (GO):
Affected version(s) >=v2.34.0 <v2.34.2
Fix Suggestion:
Update to version v2.34.2
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CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Allocation of Resources Without Limits or Throttling
EPSS
Base Score:
0.55