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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Cloudflare | octorpki | unspecified – < 1.4.0 | 1.4.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | fort-validator | 1.5.3-1 | — |
| Debian 14 | rpki-client | 7.5-1 | — |
| Debian 13 | fort-validator | 1.5.3-1 | — |
| Debian 13 | rpki-client | 7.5-1 | — |
| Debian 12 | cfrpki | 1.4.0-1 | — |
| Debian 12 | fort-validator | 1.5.3-1 | — |
| Debian 12 | rpki-client | 7.5-1 | — |
| Debian 11 | cfrpki | 1.4.2-1~deb11u1 | DSA-5041-1 |
| Debian 11 | fort-validator | 1.5.3-1~deb11u1 | DSA-5033-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/cloudflare/cfrpki | < 1.4.0 | 1.4.0 | GHSA-8cvr-4rrf-f244 |
Advisories 2
- DSA-5041-1 cfrpki - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-5033-1 fort-validator - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://github.com/cloudflare/cfrpki/security/advisories/GHSA-8cvr-4rrf-f244
- DSA-5033 vendor-advisory
- DSA-5041 vendor-advisory