Vulnerability in Envoyproxy Envoy
CVE-2019-18802
An issue was discovered in Envoy 1.12.0. An untrusted remote client may send an HTTP header (such as Host) with whitespace after the header content. Envoy will treat "header-value " as a different string from "header-value" so for example…
EPSS: 0.025 (82.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Envoyproxy Envoy
- N/a — versions n/a
References
- cve@mitre.org (Patch, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC)
- cve@mitre.org (Product, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)
Frequently asked questions
- What is CVE-2019-18802?
- CVE-2019-18802 is a critical-severity vulnerability in Envoyproxy Envoy. CVSS score: 9.8/10. Published 2019-12-13.
- How severe is CVE-2019-18802?
- Critical severity. CVSS v3 base score is 9.8 out of 10.