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CVE-2026-55436

31
FAUCET Score

Coder allows organizations to provision remote development environments via Terraform. Starting in version 2.30.0 and prior to versions 2.32.7, 2.33.8, and 2.34.2, the AI Bridge Proxy (`aibridgeproxyd`) created a goproxy server whose default transport set `InsecureSkipVerify: true` 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. Practical exploitation requires an on-path (man-in-the-middle) position between the AI Bridge Proxy and the Coder server. Deployments where they are co-located over loopback are effectively unaffected. The fix in versions 2.32.7, 2.33.8, and 2.34.2 applies the secure transport (TLS 1.2 or higher using system root CAs) unconditionally. As a workaround, ensure the Coder access URL uses a trusted certificate and secure the network path between the AI Bridge Proxy and the Coder server (for example, loopback or mTLS).

First published: Jul 8, 2026Last modified: Jul 8, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.30.0, < 2.32.7CPE matchmatch criteria
cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*
>= 2.33.0, < 2.33.8CPE matchmatch criteria
cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*
>= 2.34.0, < 2.34.2CPE matchmatch criteria
cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 3.1

7.4HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.16%
Probability of exploitation in next 30 days
EPSS Percentile
5.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0016 is in the 0th percentile among its peer group of 8,915 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/coder/coder/v2Fixed in: 2.34.2
gopatch availablevia ghsa
Product: github.com/coder/coder/v2Fixed in: 2.33.8
gopatch availablevia ghsa
Product: github.com/coder/coder/v2Fixed in: 2.32.7

Vendor Advisories (1)

goGHSA-84rm-42xw-mx52high

Coder's AI Bridge Proxy skips TLS certificate verification in default configuration

Jul 6, 2026

References

github.com / coder/coder/pull/26131
Issue TrackingPatch
github.com / coder/coder/releases/tag/v2.32.7
Release Notes
github.com / coder/coder/releases/tag/v2.33.8
Release Notes
github.com / coder/coder/releases/tag/v2.34.2
Release Notes
github.com / coder/coder/security/advisories/GHSA-84rm-42xw-mx52
PatchVendor Advisory