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.
Published: 2026-07-07
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

Coder’s AI Bridge provider endpoints read request bodies using io.ReadAll without a maximum size, allowing an authenticated user with AI Bridge access to submit an arbitrarily large payload that consumes server heap memory until the process crashes. This flaw exemplifies uncontrolled resource consumption, classified as CWE‑770. The attack does not affect confidentiality or integrity; it merely disrupts service availability for the impacted organization.

Affected Systems

The vulnerability exists in the Coder application, version 2.33.0 and all subsequent releases up to but not including 2.33.8 and 2.34.2. The affected product is Coder, a remote development environment provisioning platform accessed via its Terraform integration and AI Bridge APIs.

Risk and Exploitability

Rated with a moderate CVSS score of 6.5 and an EPSS score of < 1 %, the flaw is not listed in the CISA KEV catalog. Exploitation requires authenticated access to the AI Bridge endpoints, so the threat is confined to users with appropriate permissions within an organization. Attackers could trigger the denial of service by sending a large request body to the vulnerable endpoint; no publicly documented workarounds exist beyond disabling the feature or applying the patch.

Generated by OpenCVE AI on August 1, 2026 at 17:17 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Coder to version 2.33.8 or 2.34.2, or any later patch release that limits request body size.
  • Restrict AI Bridge endpoint access to the minimum necessary user set, applying least‑privilege controls or disabling the feature for untrusted accounts.
  • After upgrading, monitor application memory usage to detect any lingering resource exhaustion attempts.
  • Consider temporarily disabling the AI Bridge endpoints during high‑traffic periods to prevent service disruption.

Generated by OpenCVE AI on August 1, 2026 at 17:17 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Github GHSA Github GHSA GHSA-f5vp-w269-392g Coder vulnerable to denial of service via unbounded request body in AI Bridge provider endpoints
History

Wed, 08 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 07 Jul 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Coder
Coder coder
Vendors & Products Coder
Coder coder

Tue, 07 Jul 2026 20:30:00 +0000

Type Values Removed Values Added
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.
Title Coder vulnerable to denial of service via unbounded request body in AI Bridge provider endpoints
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-07-08T14:15:15.446Z

Reserved: 2026-06-16T21:59:57.017Z

Link: CVE-2026-55434

cve-icon Vulnrichment

Updated: 2026-07-08T14:15:11.160Z

cve-icon NVD

Status : Analyzed

Published: 2026-07-07T21:17:27.290

Modified: 2026-07-08T19:47:17.140

Link: CVE-2026-55434

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-01T17:30:07Z

Weaknesses
  • CWE-770

    Allocation of Resources Without Limits or Throttling