Contour
Vendor:
First CVE: Aug 5, 2020 · Active for 5 years
5
Total CVEs
More Total CVEs than 77% of tracked products
1.0
Avg CVEs / Year
Bottom 1%
8.3
Avg CVSS
Higher Avg CVSS than 73% of tracked products
20.0%
KEV Rate
Higher KEV Rate than 98% of tracked products
Trends Over Time
The number and severity of CVEs published that impact Contour over time
Volume of CVEsAvg CVSS Base Score
First CVE
Aug 5, 2020
5 years ago
Most Recent CVE
Apr 23, 2026
94 days ago
CVE Severity & Scoring
Contour5 CVEs
80%
20%
All CVEs352,719 CVEs
45%
40%
11%
HighCritical
Attack Vector
Local0 (0.0%)
Network5 (100.0%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low5 (100.0%)
High0 (0.0%)
Unknown0 (0.0%)
User Interaction
None5 (100.0%)
Unknown0 (0.0%)
Required0 (0.0%)
Privileges Required
Low2 (40.0%)
High0 (0.0%)
None3 (60.0%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (5 CVEs).
5 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-2026-41246HIGH Contour is a Kubernetes ingress controller using Envoy proxy. From v1.19.0 to before v1.33.4, v1.32.5, and v1.31.6, Contour's Cookie Rewriting feature is vulnerable to Lua code inj | Apr 23, 2026 | 8.1 | 30 | NO | NO |
CVE-2021-32783HIGH Contour is a Kubernetes ingress controller using Envoy proxy. In Contour before version 1.17.1 a specially crafted ExternalName type Service may be used to access Envoy's admin int | Jul 23, 2021 | 8.5 | 27 | NO | NO |
CVE-2024-36539CRITICAL Insecure permissions in contour v1.28.3 allows attackers to access sensitive data and escalate privileges by obtaining the service account's token. | Jul 24, 2024 | 9.8 | 26 | NO | NO |
CVE-2020-15127HIGH In Contour ( Ingress controller for Kubernetes) before version 1.7.0, a bad actor can shut down all instances of Envoy, essentially killing the entire ingress data plane. GET reque | Aug 5, 2020 | 7.5 | 25 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (5 CVEs).
CISA KEV
1 CVE
20.0% of CVEs· 98th percentile
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
1 CVE
20.0% of CVEs· 89th percentile
Social Chatter
Signals from CVEs in this product scope (5 CVEs).
Media Mentions
Signals from CVEs in this product scope (5 CVEs).
Top CNAs Publishing CVEs For Contour
Top CWEs
Versions
| Version | CVE Count | Avg CVSS | Avg EPSS | KEV | Exploits |
|---|---|---|---|---|---|
| 1.28.3 | 1 | 9.8 | 1.3% | 0 | 0 |