Linux Distros Unpatched Vulnerability : CVE-2021-47996

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 vulnerabiliti...

CVE-2026-79769

Nokogiri versions before 1.19.4 contain a possible invalid out-of-bounds memory read in the protected internal Nodeinitializecopywithargs helper behind Nodedup and clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a...

CVE-2023-54354

Nokogiri before 1.14.3 CRuby implementation only, when using the packaged libxml2 bundles libxml2 v2.10.3, which is vulnerable to NULL pointer dereferences in XML Schema processing xmlSchemaFixupComplexType, CVE-2023-28484, and xmlSchemaCheckCOSSTDerivedOK. An attacker who supplies a...

CVE-2026-79769 Nokogiri before 1.19.4 Invalid Memory Read via initialize_copy_with_args

Nokogiri versions before 1.19.4 contain a possible invalid out-of-bounds memory read in the protected internal Nodeinitializecopywithargs helper behind Nodedup and clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a...

CVE-2026-79769 Nokogiri before 1.19.4 Invalid Memory Read via initialize_copy_with_args

Nokogiri versions before 1.19.4 contain a possible invalid out-of-bounds memory read in the protected internal Nodeinitializecopywithargs helper behind Nodedup and clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a...

CVE-2026-79769

Nokogiri (Ruby gem) versions before 1.19.4 contain an out-of-bounds memory read in the protected internal method Node#initialize_copy_with_args , which unwraps its source argument as an xmlNode without a type check. If application code calls this method with a non-Node argument (e.g., a Namespace...

CVE-2026-79769

Nokogiri versions before 1.19.4 contain a possible invalid out-of-bounds memory read in the protected internal Nodeinitializecopywithargs helper behind Nodedup and clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a...

EUVD-2026-65527

Nokogiri versions before 1.19.4 contain a possible invalid out-of-bounds memory read in the protected internal Nodeinitializecopywithargs helper behind Nodedup and clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a...

CVE-2024-58378

Removed by vendor...

CVE-2023-54354

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CVE-2023-54354

CVE-2023-54354 has been rejected as a duplicate , but its technical details remain relevant. Nokogiri before 1.14.3 (CRuby implementation only, using the packaged libxml2 v2.10.3 ) is vulnerable to NULL pointer dereferences in XML Schema processing (specifically in xmlSchemaFixupComplexType and x...

CVE-2023-54354

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CVE-2023-54354

Removed by vendor...

Linux Distros Unpatched Vulnerability : CVE-2026-57236

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, calling Documentencoding= with an invalid encoding e.g., a...

CVE-2026-57235

CVE-2026-57235 affects Nokogiri (Ruby) prior to 1.19.4. The bug is in Nokogiri::XML::NodeSet#[] (and #slice) where the index check used a 32‑bit truncated copy, allowing a large negative index to pass bounds checks and be used with full width. Result: on CRuby an out‑of‑bounds read that typically...

CVE-2026-57236

CVE-2026-57236 affects Nokogiri (Ruby) with the CRuby/libxml2 backend. Prior to 1.19.4, calling Document#encoding= with an invalid encoding (e.g., non-string or null byte) frees the current encoding string but does not replace it, leaving the document referencing freed memory. The next call to Do...

EUVD-2026-39419

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, calling Documentencoding= with an invalid encoding e.g., a non-string, or a string containing a null byte raises an exception, but only after freeing the document's current encoding string without...

GHSA-WFPW-MMFH-QQ69 Nokogiri: Possible Use-After-Free in XInclude Processing

Summary XInclude substitution performed by Nokogiri::XML::Nodedoxinclude replaced each in place, freeing the include node along with its children such as and its descendants and any namespaces declared on them. If an application had already exposed one of those nodes or namespaces to Ruby, the...

GHSA-WJV4-X9W8-WM3H Nokogiri: Possible Use-After-Free when setting `Document#root=` to an invalid node type

Summary Nokogiri::XML::Documentroot= validated only that the new root was a Nokogiri::XML::Node, allowing a DTD node to be set as the document root. The result is a heap use-after-free during garbage collection or finalization, leading to an invalid memory read or potentially a segfault. Nokogiri...

ruby: Murmur hash-flooding DoS flaw in ruby 1.9 (oCERT-2012-001)

Ruby aka CRuby 1.9 before 1.9.3-p327 and 2.0 before r37575 computes hash values without properly restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service CPU consumption via crafted input to an application that maintains...