CVE-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 Bridge provider handle

mediumCVSS 6.5CVE-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 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.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: medium — CVSS 6.5
Published: 2026-07-07
Last updated: 2026-07-08
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-55434

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-554340.55% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 42% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-55434	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

mediumGHSA-f5vp-w269-392g: Coder vulnerable to denial of service via unbounded request body in AI Bridge provider en…ghsa

Recent advisories for Coder

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

mediumCVE-2026-55438: Coder allows organizations to provision remote development environments via Terraform. Prior t…nvd · 2026-07-08
mediumCVE-2026-55437: Coder allows organizations to provision remote development environments via Terraform. Prior t…nvd · 2026-07-08
highCVE-2026-55436: Coder allows organizations to provision remote development environments via Terraform. Startin…nvd · 2026-07-08
mediumCVE-2026-55433: Coder allows organizations to provision remote development environments via Terraform. Prior t…nvd · 2026-07-08
mediumCVE-2026-55432: Coder allows organizations to provision remote development environments via Terraform. Prior t…nvd · 2026-07-08
highCVE-2026-55431: Coder allows organizations to provision remote development environments via Terraform. Prior t…nvd · 2026-07-08