| Name | CVE-2020-26247 |
| Description | Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri before version 1.11.0.rc4 there is an XXE vulnerability. XML Schemas parsed by Nokogiri::XML::Schema are trusted by default, allowing external resources to be accessed over the network, potentially enabling XXE or SSRF attacks. This behavior is counter to the security policy followed by Nokogiri maintainers, which is to treat all input as untrusted by default whenever possible. This is fixed in Nokogiri version 1.11.0.rc4. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2678-1, DLA-3149-1 |
| Debian Bugs | 978967 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| ruby-nokogiri (PTS) | buster | 1.10.0+dfsg1-2 | vulnerable |
| buster (security) | 1.10.0+dfsg1-2+deb10u1 | fixed | |
| bullseye | 1.11.1+dfsg-2 | fixed | |
| bookworm | 1.13.10+dfsg-2 | fixed | |
| trixie | 1.16.0+dfsg-2 | fixed | |
| sid | 1.16.2+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| ruby-nokogiri | source | stretch | 1.6.8.1-1+deb9u1 | DLA-2678-1 | ||
| ruby-nokogiri | source | buster | 1.10.0+dfsg1-2+deb10u1 | DLA-3149-1 | ||
| ruby-nokogiri | source | (unstable) | 1.11.1+dfsg-1 | low | 978967 |
https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-vr8q-g5c7-m54m
https://github.com/sparklemotion/nokogiri/commit/9c87439d9afa14a365ff13e73adc809cb2c3d97b (v1.11.0.rc4)