Medium severity5.9NVD Advisory· Published Nov 11, 2021· Updated Jun 17, 2026

CVE-2021-3908

Description

OctoRPKI does not limit the depth of a certificate chain, allowing for a CA to create children in an ad-hoc fashion, thereby making tree traversal never end.

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

Cloudflare/Octorpkiv52 versions
unspecified+ 1 more
- (no CPE)range: unspecified
- cpe:2.3:a:cloudflare:octorpki:*:*:*:*:*:*:*:*range: <1.3.0
ghsa-coords
pkg:golang/github.com/cloudflare/cfrpki
Range: < 1.4.0
Debian/linux
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-g5gj-9ggf-9vmqghsaADVISORY
github.com/cloudflare/cfrpki/security/advisories/GHSA-g5gj-9ggf-9vmqnvdThird Party AdvisoryWEB
nvd.nist.gov/vuln/detail/CVE-2021-3908ghsaADVISORY
www.debian.org/security/2022/dsa-5041nvdThird Party AdvisoryWEB
github.com/cloudflare/cfrpki/releases/tag/v1.4.0ghsaWEB

News mentions

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cvss	0.384
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000