CVE Watch28 ago 2026

CVE-2021-47996

Nokogiri before 1.11.4 (CRuby implementation only, when the packaged/vendored libxml2 is used) bundles libxml2 2.9.10, which is affected by

CVSS

7.5

Alto

EPSS

0.5%

p42

KEV

—

Exploit Today

0-100

Publicado: 25 ago 2026 · Última mod.: 28 ago 2026 · CWE-119

EPSS · 30d

0.5%EPSS · 30 días0.5%

2026-08-262026-08-28

Descripción técnica

Nokogiri before 1.11.4 (CRuby implementation only, when the packaged/vendored libxml2 is used) bundles libxml2 2.9.10, which is affected by multiple vulnerabilities addressed in libxml2 2.9.12, including a memory leak in xmlSchemaValidateStream (CVE-2019-20388), a global buffer over-read in xmlEncodeEntitiesInternal (CVE-2020-24977), a heap-based buffer overflow (CVE-2021-3517), and an out-of-bounds read (CVE-2021-3518). Processing crafted XML documents may lead to denial of service, information disclosure, or memory corruption.

Referencias oficiales

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