Coder 2.30.x < 2.32.7 / 2.33.x < 2.33.8 / 2.34.x < 2.34.2 AI Bridge Proxy TLS Verification Bypass

high Nessus Plugin ID 326278

Synopsis

The remote host has an application installed that is affected by a vulnerability.

Description

The version of Coder installed on the remote host is 2.30.x prior to 2.32.7, 2.33.x prior to 2.33.8, or 2.34.x prior to 2.34.2. It is, therefore, affected by a vulnerability.

The AI Bridge Proxy skips TLS certificate verification in the default configuration. The proxy created a goproxy server whose default transport set InsecureSkipVerify and only assigned a secure transport when an upstream proxy was configured. In the default configuration (no upstream proxy), outbound HTTPS to the Coder access URL accepted any TLS certificate, enabling potential interception of session tokens and API keys by an on-path attacker.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update Coder to version 2.32.7, 2.33.8, or 2.34.2 or later.

Plugin Details

Severity: High

ID: 326278

File Name: coder_CVE-2026-55436.nasl

Version: 1.1

Type: Local

Family: Misc.

Published: 7/10/2026

Updated: 7/10/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.66

CVSS v2

Risk Factor: High

Base Score: 7.1

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-55436

CVSS v3

Risk Factor: High

Base Score: 7.4

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Vulnerability Information

CPE: cpe:/a:coder:coder

Required KB Items: installed_sw/Coder

Patch Publication Date: 6/12/2026

Vulnerability Publication Date: 6/12/2026

Reference Information

CVE: CVE-2026-55436

IAVB: 2026-B-0188

Detections

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