CVE-2026-55434
published 2026-07-07CVE-2026-55434: 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…
PriorityP339medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
0.55%
45.0th percentile
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
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| coder | coder | — | — |
| coder | coder | — | — |
| coder | coder | >= 2.33.0 < 2.33.8 | 2.33.8 |
| coder | coder | >= 2.34.0 < 2.34.2 | 2.34.2 |
| github.com | coder_coder_v2 | >= 2.33.0 < 2.33.8 | 2.33.8 |
| github.com | coder_coder_v2 | >= 2.34.0 < 2.34.2 | 2.34.2 |
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VulDB
Coder up to 2.33.7/2.34.1 AI Bridge Provider Handlers denial of service
vuldb·2026-07-07·CVSS 6.5
CVE-2026-55434 [MEDIUM] Coder up to 2.33.7/2.34.1 AI Bridge Provider Handlers denial of service
A vulnerability labeled as problematic has been found in Coder up to 2.33.7/2.34.1. The impacted element is an unknown function of the component AI Bridge Provider Handlers. The manipulation results in denial of service.
This vulnerability is known as CVE-2026-55434. It is possible to launch the attack remotely. No exploit is available.
GHSA
Coder vulnerable to denial of service via unbounded request body in AI Bridge provider endpoints
ghsa·2026-07-06
CVE-2026-55434 [MEDIUM] CWE-770 Coder vulnerable to denial of service via unbounded request body in AI Bridge provider endpoints
Coder vulnerable to denial of service via unbounded request body in AI Bridge provider endpoints
### Summary
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.
> **Note:** Exploitation requires authenticated access to the AI Bridge endpoints and the impact is limited to availability (denial of service).
### Impact
An authenticated member-level user could POST a very large or chunked body to an AI Bridge provider endpoint such as `/api/v2/aibridge/anthropic/v1/messages`, growing heap memory until the operating system terminates the process. Because AI Bridge runs in-process with `coderd`, this crashes the entire control plane, including the API,
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-07-07
Published