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Medium 5.3
Nokogiri before 1.19.1 Unchecked Return Value canonicalize
Nokogiri versions before 1.19.1 fail to check the return value from xmlC14NExecute in the canonicalize method, returning an empty string on failure instead of raising an exception. Attackers can exploit this to bypass signature validation in downstream SAML l…
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Medium 5.3
Nokogiri before 1.19.3 Memory Leak via XSLT Transform
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 …
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Medium 6.3
Nokogiri: Possible Out-of-Bounds Read in `Nokogiri::XML::NodeSet#[]`
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::NodeSet#[] (and its alias #slice) checked the requested index against the node set's bounds using a 32-bit-truncated copy of the index. A large …
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Medium 6.5
XML Injection in Xerces Java affects Nokogiri
## Summary Nokogiri v1.13.4 updates the vendored `xerces:xercesImpl` from 2.12.0 to 2.12.2, which addresses [CVE-2022-23437](https://nvd.nist.gov/vuln/detail/CVE-2022-23437). That CVE is scored as CVSS 6.5 "Medium" on the NVD record. Please note that this adv…
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Medium 5.9
Nokogiri Implements libxml2 version vulnerable to null pointer dereferencing
A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used …
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Medium 6.5
Nokogiri vulnerable to DoS while parsing XML entities
Nokogiri gem 1.5.x and 1.6.x has DoS while parsing XML entities by failing to apply limits
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Medium 6.5
Nokogiri vulnerable to DoS while parsing XML documents
Nokogiri gem 1.5.x has Denial of Service via infinite loop when parsing XML documents
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Medium 5.3
libxslt Type Confusion vulnerability that affects Nokogiri
In numbers.c in libxslt 1.1.33, a type holding grouping characters of an xsl:number instruction was too narrow and an invalid character/length combination could be passed to xsltNumberFormatDecimal, leading to a read of uninitialized stack data.
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Medium 5.3
Uninitialized read in Nokogiri gem
In numbers.c in libxslt 1.1.33, an xsl:number with certain format strings could lead to a uninitialized read in xsltNumberFormatInsertNumbers. This could allow an attacker to discern whether a byte on the stack contains the characters A, a, I, i, or 0, or any…
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Medium 6.5
Nokogiri NULL Pointer Dereference
A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with th…
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Medium 6.5
Uncontrolled resource consumption in nokogiri
The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate fi…
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Medium 6.1
Cross-site Scripting in loofah
In the Loofah gem through 2.2.0 for Ruby, non-whitelisted HTML attributes may occur in sanitized output by republishing a crafted HTML fragment.
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Medium —
Heap-based buffer overflow in nokogiri
Heap-based buffer overflow in the xmlGROW function in parser.c in libxml2 before 2.9.3 allows context-dependent attackers to obtain sensitive process memory information via unspecified vectors.
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Medium —
Nokogiri vulnerable to libxml XML Entity Expansion
The xmlreader in libxml allows remote attackers to cause a denial of service (memory consumption) via crafted XML data, related to an XML Entity Expansion (XEE) attack.