Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 5.9 | Medium | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.036, the 89th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
Sources
- GitHub Advisory Database: GHSA-286v-pcf5-25rc
- OSV: GHSA-286v-pcf5-25rc
- nvd.nist.gov/vuln/detail/CVE-2021-3537
- bugzilla.redhat.com/show_bug.cgi?id=1956522
- github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2021-3537.yml
- github.com/sparklemotion/nokogiri
- github.com/sparklemotion/nokogiri/blob/2edbbef95f1dc12c1ddc5ebda71b9159026245fe/CHANGELOG.md?plain=1#L722
- lists.debian.org/debian-lts-announce/2021/05/msg00008.html
- lists.fedoraproject.org/archives/list/[email protected]/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6
- lists.fedoraproject.org/archives/list/[email protected]/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV
- nokogiri.org/CHANGELOG.html#1114-2021-05-14
- security.gentoo.org/glsa/202107-05
- security.netapp.com/advisory/ntap-20210625-0002
- www.oracle.com/security-alerts/cpuapr2022.html