CVE-2026-79771 (GCVE-0-2026-79771)

Vulnerability from cvelistv5 – Published: 2026-08-25 15:16 – Updated: 2026-08-25 17:44
VLAI
Title
Nokogiri before 1.19.3 Memory Leak via XSLT Transform
Summary
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.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 17:43 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6106 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
sparklemotion nokogiri Affected: 0 , < 1.19.3 (semver)
Unaffected: 1.19.3 (semver)
    cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-04-27 00:00
Credits
Captainjack-kor flavorjones
Show details on NVD website
To clipboard 

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