CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2021-3909
High (7.5). EPSS 1.6% chance of exploitation in the next 30 days. Fixed in github.com/cloudflare/cfrpki 1.4.0.
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.
Severity
- EPSS
- 1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-31)
- CWE
- CWE-400
- Published
- Modified
- Record from
- the NVD, synced
Affected
- cloudflare:octorpki
- debian:debian_linux
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-8cvr-4rrf-f244 | Go | github.com/cloudflare/cfrpki | <1.4.0 | 1.4.0 |
| GO-2022-0250 | Go | github.com/cloudflare/cfrpki | <1.4.0 | 1.4.0 |