CVE-2019-15226
- Source
- https://cve.org/CVERecord?id=CVE-2019-15226
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-15226.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2019-15226
- Published
- 2019-10-09T16:15:14Z
- Modified
- 2026-05-15T11:17:39Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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 traffic and all versions of Envoy for HTTP/2 traffic had O(n^2) performance characteristics. A remote attacker may craft a request that stays below the maximum request header size but consists of many thousands of small headers to consume CPU and result in a denial-of-service attack.
- References
Affected packages
Git / github.com/envoyproxy/envoy
Affected ranges
- Type
- GIT
- Repo
- https://github.com/envoyproxy/envoy
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast AffectedLast AffectedLast AffectedLast AffectedLast AffectedLast AffectedLast AffectedLast AffectedLast AffectedLast AffectedLast AffectedLast AffectedLast AffectedLast AffectedLast AffectedLast Affected
- Database specific
-
Show details
{ "cpe": [ "cpe:2.3:a:envoyproxy:envoy:1.0.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.1.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.2.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.3.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.4.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.5.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.6.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.7.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.7.1:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.8.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.9.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.9.1:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.10.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.11.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.11.1:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.11.2:*:*:*:*:*:*:*" ], "extracted_events": [ { "introduced": "0" }, { "last_affected": "1.0.0" }, { "last_affected": "1.1.0" }, { "last_affected": "1.2.0" }, { "last_affected": "1.3.0" }, { "last_affected": "1.4.0" }, { "last_affected": "1.5.0" }, { "last_affected": "1.6.0" }, { "last_affected": "1.7.0" }, { "last_affected": "1.7.1" }, { "last_affected": "1.8.0" }, { "last_affected": "1.9.0" }, { "last_affected": "1.9.1" }, { "last_affected": "1.10.0" }, { "last_affected": "1.11.0" }, { "last_affected": "1.11.1" }, { "last_affected": "1.11.2" } ], "source": "CPE_FIELD" }