What is CVE-2019-15226?

CVE-2019-15226 is a high-severity vulnerability in Envoyproxy Envoy, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2019-10-09.

How severe is CVE-2019-15226?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Envoyproxy Envoy

CVE-2019-15226

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 implementation in versions 1.10.0 through 1.11.1 for HTTP/1.x…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.654 (99.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Envoyproxy Envoy — versions 1.0.0, 1.1.0, 1.2.0
N/a — versions n/a

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-15226?: CVE-2019-15226 is a high-severity vulnerability in Envoyproxy Envoy, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2019-10-09.
How severe is CVE-2019-15226?: High severity. CVSS v3 base score is 7.5 out of 10.