https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-17T13:20:05.317025+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-182853 EUVD-2026-182853 2026-10-17T13:20:05.322745+00:00 EUVD-2026-182853 https://cve.radiocsirt.org/vuln/fkie_cve-2021-3761 fkie_cve-2021-3761 2026-10-17T13:20:05.322791+00:00

Any CA issuer in the RPKI can trick OctoRPKI prior to 1.3.0 into emitting an invalid VRP "MaxLength" value, causing RTR sessions to terminate. An attacker can use this to disable RPKI Origin Validation in a victim network (for example AS 13335 - Cloudflare) prior to launching a BGP hijack which during normal operations would be rejected as "RPKI invalid". Additionally, in certain deployments RTR session flapping in and of itself also could cause BGP routing churn, causing availability issues.

 https://cve.radiocsirt.org/vuln/ghsa-c8xp-8mf3-62h9 GHSA-c8xp-8mf3-62h9 — OctoRPKI lacks contextual out-of-bounds check when validating RPKI ROA maxLength values 2026-10-17T13:20:05.322845+00:00

Affected: Go: github.com/cloudflare/cfrpki

Any CA issuer in the RPKI can trick OctoRPKI prior to https://github.com/cloudflare/cfrpki/commit/a8db4e009ef217484598ba1fd1c595b54e0f6422 into emitting an invalid VRP "MaxLength" value, causing RTR sessions to terminate.

### Impact

An attacker can use this to disable RPKI Origin Validation in a victim network (for example AS 13335 - Cloudflare) prior to launching a BGP hijack which during normal operations would be rejected as "RPKI invalid". Additionally, in certain deployments RTR session flapping in and of itself also could cause BGP routing churn, causing availability issues.

### Patches https://github.com/cloudflare/cfrpki/commit/a8db4e009ef217484598ba1fd1c595b54e0f6422

https://github.com/cloudflare/cfrpki/releases/tag/v1.3.0

### For more information If you have any questions or comments about this advisory: * Email us at [security@cloudflare.com](security@cloudflare.com)

 https://cve.radiocsirt.org/vuln/gsd-2021-3761 gsd-2021-3761 2026-10-17T13:20:05.322903+00:00 gsd-2021-3761 https://cve.radiocsirt.org/vuln/ubuntu-cve-2021-3761 Withdrawn: UBUNTU-CVE-2021-3761 2026-10-17T13:20:05.322926+00:00

Withdrawn by the publisher.

Affected: Ubuntu:22.04:LTS: cfrpki

Any CA issuer in the RPKI can trick OctoRPKI prior to 1.3.0 into emitting an invalid VRP "MaxLength" value, causing RTR sessions to terminate. An attacker can use this to disable RPKI Origin Validation in a victim network (for example AS 13335 - Cloudflare) prior to launching a BGP hijack which during normal operations would be rejected as "RPKI invalid". Additionally, in certain deployments RTR session flapping in and of itself also could cause BGP routing churn, causing availability issues.