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7.5

CVE-2020-12605: Envoy version 1.14.2, 1.13.2, 1.12.4 or earlier may consume excessive amounts of memory when processing HTTP/1.1 headers with long field names or requests with long URLs.

CVE-2020-12605 · published 6 years ago
Summary

Envoy version 1.14.2, 1.13.2, 1.12.4 or earlier may consume excessive amounts of memory when processing HTTP/1.1 headers with long field names or requests with long URLs.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
envoyproxy envoy <= 1.12.4
1.13.2
1.14.2
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
Original advisory text
Envoy version 1.14.2, 1.13.2, 1.12.4 or earlier may consume excessive amounts of memory when processing HTTP/1.1 headers with long field names or requests with long URLs.
Envoy version 1.14.2, 1.13.2, 1.12.4 or earlier may consume excessive amounts of memory when processing HTTP/1.1 headers with long field names or requests with long URLs.
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
7.5 High
Exploitation
1% chance of attack within 30 days
Type
CWE-770Allocation of Resources Without Limits
Timeline
Published1 Jul 2020
Updated4 Nov 2026
First seen29 Sep 2026
Sources
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