EUVD-2026-65536

rclone before v1.75.0 contains a denial of service vulnerability in the WebDAV TUS creation handler that dereferences a nil response before checking for transport errors. A malicious or compromised configured endpoint can reset connections during TUS uploads to trigger a panic that terminates...

EUVD-2026-65533

rclone versions = v1.72.0 and = v1.74.4 fixed in v1.75.0 contain multiple denial-of-service vulnerabilities in the archive backend's SquashFS parser, which relies on the github.com/diskfs/go-diskfs dependency. The parser fails to validate attacker-controlled superblock and metadata values before...

CVE-2026-79775

rclone versions v1.72.0 through v1.74.4 are affected by multiple denial-of-service vulnerabilities in the archive backend's SquashFS parser , which depends on the github.com/diskfs/go-diskfs library. The parser fails to validate attacker-controlled superblock and metadata values, enabling three d...

CVE-2026-79775 rclone Archive Backend SquashFS Parser Denial of Service

rclone versions = v1.72.0 and = v1.74.4 fixed in v1.75.0 contain multiple denial-of-service vulnerabilities in the archive backend's SquashFS parser, which relies on the github.com/diskfs/go-diskfs dependency. The parser fails to validate attacker-controlled superblock and metadata values before...

CVE-2026-79771

Nokogiri versions before 1.19.3 are affected by a memory leak in the XSLT Stylesheet transform method. The root cause is heap allocations leaking when Ruby strings containing null bytes are passed as transform parameters. An unauthenticated, network-based attacker can trigger this by supplying cr...

EUVD-2026-65528

Nokogiri versions before 1.19.3 contain regular expression denial of service vulnerabilities in the CSS selector tokenizer affecting string-literal and identifier tokenization. Attackers can inject adversarial CSS selectors into methods like Nodecss, Nodeatcss, and Searchablesearch to cause...

EUVD-2026-65529

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...

CVE-2026-79770

Nokogiri versions before 1.19.3 are vulnerable to ReDoS (Regular Expression Denial of Service) in the CSS selector tokenizer , specifically in string-literal and identifier tokenization. An attacker who can supply adversarial CSS selectors to methods such as Node#css, Node#at_css, or Searchable#s...

CVE-2026-79771 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 heap allocations to leak and enabling...

CVE-2026-79770 Nokogiri before 1.19.3 ReDoS via CSS selector tokenizer

Nokogiri versions before 1.19.3 contain regular expression denial of service vulnerabilities in the CSS selector tokenizer affecting string-literal and identifier tokenization. Attackers can inject adversarial CSS selectors into methods like Nodecss, Nodeatcss, and Searchablesearch to cause...

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...

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-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-2025-71407 Nokogiri before 1.18.3 Stack Buffer Overflow and Use-After-Free

Nokogiri before 1.18.3 contains a stack buffer overflow vulnerability in libxml2 when reporting DTD validation errors with long QName prefixes, and a use-after-free vulnerability during validation against untrusted XML Schemas. Attackers can trigger these vulnerabilities by providing malicious DT...

EUVD-2025-210774

Nokogiri before 1.18.3 contains a stack buffer overflow vulnerability in libxml2 when reporting DTD validation errors with long QName prefixes, and a use-after-free vulnerability during validation against untrusted XML Schemas. Attackers can trigger these vulnerabilities by providing malicious DT...

CVE-2025-71407

Nokogiri versions before 1.18.3 contain two vulnerabilities in its bundled libxml2 component: a stack buffer overflow triggered when reporting DTD validation errors with long QName prefixes, and a use-after-free during validation against untrusted XML Schemas. An attacker can exploit these by sup...

CVE-2023-54354 Nokogiri before 1.14.3 Null Pointer Dereference via libxml2

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-2023-54354

Nokogiri before 1.14.3 (CRuby implementation only, when using the packaged libxml2) bundles libxml2 v2.10.3 , which contains NULL pointer dereference vulnerabilities in XML Schema processing functions (xmlSchemaFixupComplexType and xmlSchemaCheckCOSSTDerivedOK ). An attacker supplying a crafted o...

EUVD-2023-60605

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...

EUVD-2022-56025

Nokogiri before 1.13.2 CRuby, when using packaged libraries ships vendored libxml2 2.9.12 and libxslt 1.1.34, which are affected by two upstream CVEs. Via CVE-2021-30560 in libxslt, an application transforming XML with untrusted XSL stylesheets is vulnerable to a denial-of-service attack. Via...