# Envoy Proxy vulnerabilities

Source: https://junglewise.ai/threats/technologies/envoy-proxy  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/envoy-proxy.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Envoy Proxy: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, Istio and Envoy Proxy security vulnerabilities, was published on 19 October 2026. 1 vulnerability in the last four weeks, level on the four before (1).

## Counts

- Last 7 days: 0
- Last 30 days: 1
- Last 90 days: 2
- All time: 3 (0 critical, 0 exploited in the wild)

## About Envoy Proxy

Open-source proxy and communication bus designed for large service-oriented architectures.

## Latest Envoy Proxy vulnerabilities

- [Istio and Envoy Proxy security vulnerabilities](https://junglewise.ai/threats/gcp-2026-069-6d8e440c) (info, published 19 Oct 2026)
- [CVE-2026-73513: Envoy Proxy multiple vulnerabilities](https://junglewise.ai/threats/cve-2026-73513-envoy-proxy-multiple-vulnerabilities) (high, CVSS 7.5, published 21 Sep 2026)
- [Envoy Proxy QPACK decoding denial-of-service in HTTP/3](https://junglewise.ai/threats/envoy-proxy-qpack-decoding-denial-of-service-in-http-3-95f03635) (info, published 29 Jun 2026)

## Most severe Envoy Proxy vulnerabilities

- [CVE-2026-73513: Envoy Proxy multiple vulnerabilities](https://junglewise.ai/threats/cve-2026-73513-envoy-proxy-multiple-vulnerabilities) (high, CVSS 7.5, published 21 Sep 2026)
- [Istio and Envoy Proxy security vulnerabilities](https://junglewise.ai/threats/gcp-2026-069-6d8e440c) (info, published 19 Oct 2026)
- [Envoy Proxy QPACK decoding denial-of-service in HTTP/3](https://junglewise.ai/threats/envoy-proxy-qpack-decoding-denial-of-service-in-http-3-95f03635) (info, published 29 Jun 2026)

## Vulnerabilities per week

1 vulnerability in the last four weeks, level on the four before (1).

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 1 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 1 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Envoy technologies

- [Envoy](https://junglewise.ai/threats/technologies/envoy-envoy): 8 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Envoy Proxy vulnerabilities", https://junglewise.ai/threats/technologies/envoy-proxy, 9 November 2026.