CVE-2026-79771
Last modified
CVE-2026-79771 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nokogiri | Nokogiri | < 1.19.3 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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