Envoy
Vendor:
First CVE: Apr 25, 2019 · Active for 7 years
110
Total CVEs
More Total CVEs than 99% of tracked products
13.8
Avg CVEs / Year
Higher CVE frequency than 97% of tracked products
7.4
Avg CVSS
Higher Avg CVSS than 48% of tracked products
0.9%
KEV Rate
Higher KEV Rate than 96% of tracked products
Trends Over Time
The number and severity of CVEs published that impact Envoy over time
Volume of CVEsAvg CVSS Base Score
First CVE
Apr 25, 2019
7 years ago
Most Recent CVE
Jun 26, 2026
28 days ago
CVE Severity & Scoring
Envoy110 CVEs
23%
66%
10%
All CVEs352,231 CVEs
45%
40%
11%
LowMediumHighCritical
Attack Vector
Local0 (0.0%)
Network108 (98.2%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network2 (1.8%)
Attack Complexity
Low100 (90.9%)
High10 (9.1%)
Unknown0 (0.0%)
User Interaction
None107 (97.3%)
Unknown0 (0.0%)
Required3 (2.7%)
Privileges Required
Low10 (9.1%)
High1 (0.9%)
None99 (90.0%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (110 CVEs).
110 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2023-44487HIGH The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through | Oct 10, 2023 | 7.5 | 97 | YES | YES |
CVE-2024-30255HIGH Envoy is a cloud-native, open source edge and service proxy. The HTTP/2 protocol stack in Envoy versions prior to 1.29.3, 1.28.2, 1.27.4, and 1.26.8 are vulnerable to CPU exhaustio | Apr 4, 2024 | 7.5 | 70 | NO | NO |
CVE-2024-27919HIGH Envoy is a cloud-native, open-source edge and service proxy. In versions 1.29.0 and 1.29.1, theEnvoy HTTP/2 protocol stack is vulnerable to the flood of CONTINUATION frames. Envoy' | Apr 4, 2024 | 7.5 | 70 | NO | NO |
CVE-2021-29492HIGH Envoy is a cloud-native edge/middle/service proxy. Envoy does not decode escaped slash sequences `%2F` and `%5C` in HTTP URL paths in versions 1.18.2 and before. A remote attacker | May 28, 2021 | 8.3 | 64 | NO | NO |
CVE-2019-15226HIGH Upon receiving each incoming request header data, Envoy will iterate over existing request headers to verify that the total size of the headers stays below a maximum limit. The imp | Oct 9, 2019 | 7.5 | 59 | NO | NO |
CVE-2026-47220HIGH Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, when the %REQUESTED_SERVER_NAME(X:Y)% is used in log for | Jun 26, 2026 | 7.5 | 34 | NO | NO |
CVE-2026-48706HIGH Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.34.0 until 1.35.13, 1.36.9, 1.37.5, and 1.38.3, a vulnerability exists in Envoy's TCP | Jun 26, 2026 | 7.5 | 34 | NO | NO |
CVE-2026-47204HIGH Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.26.0 until 1.35.13, 1.36.9, 1.37.5, and 1.38.3, the envoy.filters.http.grpc_stats filt | Jun 26, 2026 | 7.5 | 33 | NO | NO |
CVE-2026-47221HIGH Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.18.0 until 1.35.13, 1.36.9, 1.37.5, and 1.38.3, the router filter contains a null poin | Jun 26, 2026 | 7.5 | 33 | NO | NO |
CVE-2026-48743HIGH Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, Envoy can translate a downstream HTTP/3 request | Jun 26, 2026 | 7.5 | 33 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (110 CVEs).
CISA KEV
1 CVE
0.9% of CVEs· 96th percentile
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
1 CVE
0.9% of CVEs· 87th percentile
Social Chatter
Signals from CVEs in this product scope (110 CVEs).
Media Mentions
Signals from CVEs in this product scope (110 CVEs).
Top CNAs Publishing CVEs For Envoy
Top CWEs
Versions
| Version | CVE Count | Avg CVSS | Avg EPSS | KEV | Exploits |
|---|---|---|---|---|---|
| 1.9.1 | 1 | 7.5 | 65.4% | 0 | 0 |
| 1.9.0 | 1 | 7.5 | 65.4% | 0 | 0 |
| 1.8.0 | 1 | 7.5 | 65.4% | 0 | 0 |
| 1.7.1 | 1 | 7.5 | 65.4% | 0 | 0 |
| 1.7.0 | 1 | 7.5 | 65.4% | 0 | 0 |
| 1.6.0 | 1 | 7.5 | 65.4% | 0 | 0 |
| 1.5.0 | 1 | 7.5 | 65.4% | 0 | 0 |
| 1.4.0 | 1 | 7.5 | 65.4% | 0 | 0 |
| 1.38.0 | 1 | 7.5 | 0.8% | 0 | 0 |
| 1.37.0 | 5 | 6.9 | 0.3% | 0 | 0 |
| 1.36.0 | 1 | 7.5 | 0.4% | 0 | 0 |
| 1.35.0 | 2 | 8.2 | 0.4% | 0 | 0 |
| 1.34.0 | 1 | 5.3 | 0.2% | 0 | 0 |
| 1.33.0 | 1 | 7.5 | 0.4% | 0 | 0 |
| 1.30.3 | 1 | 9.1 | 0.7% | 0 | 0 |
| 1.30.0 | 1 | 7.5 | 0.7% | 0 | 0 |
| 1.3.0 | 1 | 7.5 | 65.4% | 0 | 0 |
| 1.29.6 | 1 | 9.1 | 0.7% | 0 | 0 |
| 1.29.1 | 1 | 7.5 | 86.8% | 0 | 0 |
| 1.29.0 | 1 | 7.5 | 86.8% | 0 | 0 |