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CVE-2026-79771 Details
Description
Nokogiri versions before 1.19.3 contain a memory leak in the XSLT Stylesheet transform method when processing Ruby strings containing null bytes. Attackers can exploit this by passing attacker-controlled input with null bytes to transform parameters, causing heap allocations to leak and enabling denial of service against long-running processes.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 25, 2026Exploitation: NoneAutomatable: YesTechnical Impact: Partial
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-v2fc-qm4h-8hqv | [email protected] | Vendor Advisory |
| https://www.vulncheck.com/advisories/nokogiri-before-memory-leak-via-xslt-transform | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| nokogiri nokogiri | < 1.19.3 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 1, 2026 | Initial Analysis | [email protected] |
| Aug 25, 2026 | CVE Modified | CISA-ADP |
| Aug 25, 2026 | New CVE Received | [email protected] |