Vendor
Envoy vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 10 vulnerabilities in Envoy: 9 in the last 7 days and 9 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-73553, was published on 21 September 2026. 1 technology has a page of its own.
- Last 7 days
- 9
- Last 90 days
- 9
- Critical, all time
- 0
- Exploited in the wild
- 0
Envoy technologies
Latest Envoy vulnerabilities
- CVE-2026-73553: Envoy authorization bypass via path parameter inconsistencyhighCVSS 7.5EPSS 0.5%
- CVE-2026-73551: Envoy path normalization bypass with semicolon parametersmediumCVSS 5.3EPSS 0.5%
- CVE-2026-73552: Envoy HTTP RBAC bypass via unsafe regex in headershighCVSS 7.5EPSS 0.7%
- CVE-2026-73550: Envoy HTTP/2 Host header denial of servicehighCVSS 7.5EPSS 0.9%
- CVE-2026-73549: Envoy scoped IPv6 address parsing denial of servicemediumCVSS 5.3EPSS 0.6%
- CVE-2026-73547: Envoy null pointer dereference in ext_authz filterhighCVSS 7.5EPSS 0.8%
- CVE-2026-73513: Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4…highCVSS 7.5EPSS 0.7%
- CVE-2026-73512: Envoy heap-use-after-free in HttpDatagramHandlerhighCVSS 7.5EPSS 0.8%
- CVE-2026-50572: Envoy use-after-free in HTTP external-authorization clientmediumCVSS 5.9EPSS 0.7%
- Envoy Proxy QPACK decoding denial-of-service in HTTP/3info
Most severe Envoy vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-73550: Envoy HTTP/2 Host header denial of servicehighCVSS 7.5EPSS 0.9%
- CVE-2026-73547: Envoy null pointer dereference in ext_authz filterhighCVSS 7.5EPSS 0.8%
- CVE-2026-73512: Envoy heap-use-after-free in HttpDatagramHandlerhighCVSS 7.5EPSS 0.8%
- CVE-2026-73513: Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4…highCVSS 7.5EPSS 0.7%
- CVE-2026-73552: Envoy HTTP RBAC bypass via unsafe regex in headershighCVSS 7.5EPSS 0.7%
- CVE-2026-73553: Envoy authorization bypass via path parameter inconsistencyhighCVSS 7.5EPSS 0.5%
- CVE-2026-50572: Envoy use-after-free in HTTP external-authorization clientmediumCVSS 5.9EPSS 0.7%
- CVE-2026-73549: Envoy scoped IPv6 address parsing denial of servicemediumCVSS 5.3EPSS 0.6%
- CVE-2026-73551: Envoy path normalization bypass with semicolon parametersmediumCVSS 5.3EPSS 0.5%
- Envoy Proxy QPACK decoding denial-of-service in HTTP/3info
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 9 | 0 | |
| 28 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/envoy.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Envoy vulnerabilities", https://junglewise.ai/threats/vendors/envoy, 28 September 2026.