Medium severity4.4NVD Advisory· Published Nov 11, 2021· Updated Jun 17, 2026
CVE-2021-3909
CVE-2021-3909
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/cloudflare/cfrpkiGo | < 1.4.0 | 1.4.0 |
Affected products
4unspecified+ 1 more
- (no CPE)range: unspecified
- cpe:2.3:a:cloudflare:octorpki:*:*:*:*:*:*:*:*range: <1.3.0
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-8cvr-4rrf-f244ghsaADVISORY
- github.com/cloudflare/cfrpki/security/advisories/GHSA-8cvr-4rrf-f244nvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-3909ghsaADVISORY
- www.debian.org/security/2021/dsa-5033nvdThird Party AdvisoryWEB
- www.debian.org/security/2022/dsa-5041nvdThird Party AdvisoryWEB
- github.com/cloudflare/cfrpki/releases/tag/v1.4.0ghsaWEB
News mentions
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