CVE-2026-55434

MEDIUM

Coder vulnerable to denial of service via unbounded request body in AI Bridge provider endpoints

Title source: cna
STIX 2.1

Description

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.

References (4)

Core 4
Core References
X_Refsource_Misc x_refsource_misc
https://github.com/coder/coder/pull/26164
X_Refsource_Misc x_refsource_misc
https://github.com/coder/coder/releases/tag/v2.33.8
X_Refsource_Misc x_refsource_misc
https://github.com/coder/coder/releases/tag/v2.34.2

Scores

CVSS v3 6.5
EPSS 0.0031
EPSS Percentile 23.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (5)
coder/coder 2.33.0 - 2.33.8Go
coder/coder 2.33.0 - 2.33.8
coder/coder 2.34.0 - 2.34.2Go
coder/coder >= 2.33.0, < 2.33.8
coder/coder >= 2.34.0, < 2.34.2
Published Jul 07, 2026
Tracked Since Jul 08, 2026