---
title: "Security digest: September 4, 2026"
url: https://erroneo.us/security/2026-09-04/
description: "September 4, 2026 vulnerability digest: 1 CISA KEV addition (Google); 2 critical advisories (Go, npm, crates.io (Rust)). What to patch and who can relax."
type: security-digest-day
section: "Security Digest"
date_published: 2026-09-04
date_modified: 2026-09-04
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digest: September 4, 2026

1 known exploited (cisa kev) addition and 2 critical advisories.

## Take stock

- Do you run any of these? Google Chromium V8. They are being exploited in the wild (CISA KEV). Patch or mitigate if you do; CISA’s federal deadline is 2026-09-18.
- Go: 1 critical advisory ( github.com/openchoreo/openchoreo ). Check with govulncheck ./... .
- npm: 1 critical advisory ( deepseek-tui , codewhale ). Check with npm audit (or: npm ls <package>) .
- crates.io (Rust): 1 critical advisory ( deepseek-tui , codewhale-tui ). Check with cargo audit .
- None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.

## Known exploited (CISA KEV)

- [CVE-2026-85046](https://erroneo.us/security/cve/CVE-2026-85046/index.md) Google Chromium V8: Google Chromium V8 Type Confusion Vulnerability (CISA due 2026-09-18)

## Critical advisories

- [CVE-2026-73842](https://erroneo.us/security/cve/CVE-2026-73842/index.md) OpenChoreo: cluster-gateway internal proxy performs no caller authentication and is not read-only — data-plane Secret disclosure and arbitrary Kubernetes mutation — Go github.com/openchoreo/openchoreo < 1.0.3 → 1.0.3; Go github.com/openchoreo/openchoreo >= 1.1.0, < 1.1.3 → 1.1.3; Go github.com/openchoreo/openchoreo >= 1.2.0-rc.1, < 1.2.0-rc.2 → 1.2.0
- [CVE-2026-75856](https://erroneo.us/security/cve/CVE-2026-75856/index.md) CodeWhale: SSRF‌ bypass - TOCTOU on DNS failure for DNS pinning — crates.io (Rust) deepseek-tui >= 0.8.5, <= 0.8.41 → no fix; npm deepseek-tui >= 0.8.5, < 0.8.41 → 0.8.41; crates.io (Rust) codewhale-tui >= 0.8.41, < 0.8.64 → 0.8.64

---
Source page: https://erroneo.us/security/2026-09-04/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt