CVE-2021-3909

OctoRPKI does not limit the length of a connection, allowing for a slowloris DOS attack to take place which makes OctoRPKI wait forever. Specifically, the repository that OctoRPKI sends HTTP requests to will keep the connection open for a day before a response is returned, but does keep drip feeding new bytes to keep the connection alive.

• CWE-400
• CWE-400

• https://github.com/cloudflare/cfrpki/security/advisories/GHSA-8cvr-4rrf-f244Third Party Advisory
• https://www.debian.org/security/2021/dsa-5033Third Party Advisory
• https://www.debian.org/security/2022/dsa-5041Third Party Advisory
• https://github.com/cloudflare/cfrpki/security/advisories/GHSA-8cvr-4rrf-f244Third Party Advisory
• https://www.debian.org/security/2021/dsa-5033Third Party Advisory
• https://www.debian.org/security/2022/dsa-5041Third Party Advisory

Published

Nov 11, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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