CVE-2020-26247
Low
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.
SeverityLow
CVSS2.6
Exploit probability—
Product
Nokogiri
PublishedDec 30, 2020
First seenDec 30, 2020
Weakness typeCWE-611XML external entity (XXE)
How to fix
Update
- nokogiri nokogiri1.11.0 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nokogiri nokogiri | v < 1.11.0, 1.11.0 | 1.11.0 |
| debian debian_linux | 9.0, 10.0 | — |
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