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30 vulnerabilities found for nokogiri by sparklemotion
CVE-2026-57438 (GCVE-0-2026-57438)
Vulnerability from nvd – Published: 2026-06-25 14:39 – Updated: 2026-06-25 16:23
VLAI
Title
Nokogiri: Possible Use-After-Free in XInclude Processing
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, XInclude substitution performed by Nokogiri::XML::Node#do_xinclude replaced each <xi:include> in place, freeing the include node along with its children (such as <xi:fallback> and its descendants) and any namespaces declared on them. If an application had already exposed one of those nodes or namespaces to Ruby, the corresponding Ruby object was left pointing at freed memory. Using the object could result in invalid reads or writes to memory. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57437 (GCVE-0-2026-57437)
Vulnerability from nvd – Published: 2026-06-25 14:34 – Updated: 2026-06-25 15:00
VLAI
Title
Nokogiri: Possible Use-After-Free when directly using `NokogirI::XML::XPathContext` beyond document lifetime
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::XPathContext did not keep its source document alive for garbage collection. If an XPathContext outlived its document and the document was collected, evaluating an XPath expression could read invalid memory and potentially segfault. This is only reachable when application code constructs an XPathContext directly and lets the document become unreachable while continuing to use the context. The normal Document#xpath, #css, and related search methods are not affected, and it is not triggerable by malicious document input. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57436 (GCVE-0-2026-57436)
Vulnerability from nvd – Published: 2026-06-25 14:33 – Updated: 2026-06-25 23:27
VLAI
Title
Nokogiri: Possible Use-After-Free when setting `Document#root=` to an invalid node type
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::Document#root= 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. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57435 (GCVE-0-2026-57435)
Vulnerability from nvd – Published: 2026-06-25 14:32 – Updated: 2026-06-25 14:53
VLAI
Title
Nokogiri: Possible Use-After-Free when setting an attribute value via `Nokogiri::XML::Attr#value=` or `#content=`
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri’s CRuby native extension could leave a Ruby wrapper pointing to freed memory when replacing the value of an XML attribute. If Ruby code had already accessed an attribute child node, Nokogiri::XML::Attr#value= could free the underlying native child node while the wrapper remained reachable through the document node cache. A later use of the freed child node or a Ruby GC mark could dereference an invalid pointer, causing an invalid read and a possible segfault. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57434 (GCVE-0-2026-57434)
Vulnerability from nvd – Published: 2026-06-25 14:32 – Updated: 2026-06-25 15:48
VLAI
Title
Nokogiri: Null Pointer Dereference calling methods on uninitialized wrapper classes
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri contains a bug when calling certain methods on allocated-but-uninitialized native wrapper classes that inherit from Nokogiri::XML::Node. This caused a NULL pointer dereference that could crash the process. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57236 (GCVE-0-2026-57236)
Vulnerability from nvd – Published: 2026-06-25 14:29 – Updated: 2026-06-25 15:32
VLAI
Title
Nokogiri: Possible Use-After-Free when `Nokogiri::XML::Document#encoding=` raises an exception
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, calling Document#encoding= 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 replacing it. The document is left referencing freed memory, so the next call to Document#encoding reads invalid memory, which can cause a segfault or leak freed bytes into a Ruby String. Affects the CRuby (libxml2) implementation only; JRuby is not affected. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57235 (GCVE-0-2026-57235)
Vulnerability from nvd – Published: 2026-06-25 14:31 – Updated: 2026-06-25 15:41
VLAI
Title
Nokogiri: Possible Out-of-Bounds Read in `Nokogiri::XML::NodeSet#[]`
Summary
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 negative index could pass the check and then be used at full width, reading outside the node set's storage. On CRuby this is an out-of-bounds read that typically crashes the process; on JRuby it is not memory-unsafe but returns an incorrect node. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57234 (GCVE-0-2026-57234)
Vulnerability from nvd – Published: 2026-06-25 14:30 – Updated: 2026-06-25 15:05
VLAI
Title
Nokogiri: XML::Schema on JRuby allows network requests when NONET is set, bypassing CVE-2020-26247
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, the NONET parse option, which Nokogiri turns on by default for Nokogiri::XML::Schema (see CVE-2020-26247), was not correctly enforced on the JRuby implementation. As a result, a schema parsed with default options could still cause external resources to be fetched over the network, potentially enabling SSRF or XXE attacks. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2025-6494 (GCVE-0-2025-6494)
Vulnerability from nvd – Published: 2025-06-22 22:31 – Updated: 2025-06-30 19:09 Disputed
VLAI
Title
sparklemotion nokogiri hashmap.c hashmap_get_with_hash heap-based overflow
Summary
A vulnerability was found in sparklemotion nokogiri c29c920907366cb74af13b4dc2230e9c9e23b833. It has been classified as problematic. This affects the function hashmap_get_with_hash of the file gumbo-parser/src/hashmap.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The patch is named ada4708e5a67114402cd3feb70a4e1d1d7cf773a. It is recommended to apply a patch to fix this issue. The project maintainer explains that the affected code was merged into the main branch but the commit never appeared in an official release.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.313611 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.313611 | signaturepermissions-required |
| https://vuldb.com/?submit.601006 | third-party-advisory |
| https://github.com/sparklemotion/nokogiri/issues/3508 | issue-tracking |
| https://github.com/sparklemotion/nokogiri/pull/3524 | issue-tracking |
| https://github.com/user-attachments/files/1982527… | exploit |
| https://github.com/sparklemotion/nokogiri/commit/… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
c29c920907366cb74af13b4dc2230e9c9e23b833
|
Credits
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CVE-2025-6490 (GCVE-0-2025-6490)
Vulnerability from nvd – Published: 2025-06-22 19:00 – Updated: 2025-06-30 19:09 Disputed
VLAI
Title
sparklemotion nokogiri hashmap.c hashmap_set_with_hash heap-based overflow
Summary
A vulnerability was found in sparklemotion nokogiri c29c920907366cb74af13b4dc2230e9c9e23b833 and classified as problematic. This issue affects the function hashmap_set_with_hash of the file gumbo-parser/src/hashmap.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The identifier of the patch is ada4708e5a67114402cd3feb70a4e1d1d7cf773a. It is recommended to apply a patch to fix this issue. The project maintainer explains that the affected code was merged into the main branch but the commit never appeared in an official release.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.313601 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.313601 | signaturepermissions-required |
| https://vuldb.com/?submit.601005 | third-party-advisory |
| https://github.com/sparklemotion/nokogiri/issues/3500 | issue-tracking |
| https://github.com/sparklemotion/nokogiri/pull/3524 | issue-tracking |
| https://github.com/user-attachments/files/1962543… | exploit |
| https://github.com/sparklemotion/nokogiri/commit/… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
c29c920907366cb74af13b4dc2230e9c9e23b833
|
Credits
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CVE-2022-23476 (GCVE-0-2022-23476)
Vulnerability from nvd – Published: 2022-12-08 03:03 – Updated: 2025-04-23 16:31
VLAI
Title
Unchecked return value from xmlTextReaderExpand in Nokogiri
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Nokogiri `1.13.8` and `1.13.9` fail to check the return value from `xmlTextReaderExpand` in the method `Nokogiri::XML::Reader#attribute_hash`. This can lead to a null pointer exception when invalid markup is being parsed. For applications using `XML::Reader` to parse untrusted inputs, this may potentially be a vector for a denial of service attack. Users are advised to upgrade to Nokogiri `>= 1.13.10`. Users may be able to search their code for calls to either `XML::Reader#attributes` or `XML::Reader#attribute_hash` to determine if they are affected.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
| https://github.com/sparklemotion/nokogiri/commit/… | x_refsource_MISC |
| https://github.com/sparklemotion/nokogiri/commit/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
>= 1.13.8, < 1.13.10
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CVE-2022-29181 (GCVE-0-2022-29181)
Vulnerability from nvd – Published: 2022-05-20 00:00 – Updated: 2025-05-27 14:51
VLAI
Title
Improper Handling of Unexpected Data Type in Nokogiri
Summary
Nokogiri is an open source XML and HTML library for Ruby. Nokogiri prior to version 1.13.6 does not type-check all inputs into the XML and HTML4 SAX parsers, allowing specially crafted untrusted inputs to cause illegal memory access errors (segfault) or reads from unrelated memory. Version 1.13.6 contains a patch for this issue. As a workaround, ensure the untrusted input is a `String` by calling `#to_s` or equivalent.
Severity
8.2 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-241 - Improper Handling of Unexpected Data Type
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
| https://github.com/sparklemotion/nokogiri/commit/… | x_refsource_MISC |
| https://github.com/sparklemotion/nokogiri/commit/… | x_refsource_MISC |
| https://github.com/sparklemotion/nokogiri/release… | x_refsource_MISC |
| https://securitylab.github.com/advisories/GHSL-20… | x_refsource_MISC |
| https://securitylab.github.com/advisories/GHSL-20… | x_transferred |
| https://security.gentoo.org/glsa/202208-29 | vendor-advisoryx_transferred |
| https://support.apple.com/kb/HT213532 | x_transferred |
| http://seclists.org/fulldisclosure/2022/Dec/23 | mailing-listx_transferred |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.13.6
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CVE-2022-24836 (GCVE-0-2022-24836)
Vulnerability from nvd – Published: 2022-04-11 00:00 – Updated: 2024-09-03 12:03
VLAI
Title
Inefficient Regular Expression Complexity in Nokogiri
Summary
Nokogiri is an open source XML and HTML library for Ruby. Nokogiri `< v1.13.4` contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to detect encoding in HTML documents. Users are advised to upgrade to Nokogiri `>= 1.13.4`. There are no known workarounds for this issue.
Severity
7.5 (High)
CWE
Assigner
References
11 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.13.4
|
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CVE-2021-41098 (GCVE-0-2021-41098)
Vulnerability from nvd – Published: 2021-09-27 19:35 – Updated: 2024-08-04 02:59
VLAI
Title
Improper Restriction of XML External Entity Reference (XXE) in Nokogiri on JRuby
Summary
Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri v1.12.4 and earlier, on JRuby only, the SAX parser resolves external entities by default. Users of Nokogiri on JRuby who parse untrusted documents using any of these classes are affected: Nokogiri::XML::SAX::Parse, Nokogiri::HTML4::SAX::Parser or its alias Nokogiri::HTML::SAX::Parser, Nokogiri::XML::SAX::PushParser, and Nokogiri::HTML4::SAX::PushParser or its alias Nokogiri::HTML::SAX::PushParser. JRuby users should upgrade to Nokogiri v1.12.5 or later to receive a patch for this issue. There are no workarounds available for v1.12.4 or earlier. CRuby users are not affected.
Severity
7.5 (High)
CWE
- CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
| https://github.com/sparklemotion/nokogiri/commit/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.12.5
|
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CVE-2020-26247 (GCVE-0-2020-26247)
Vulnerability from nvd – Published: 2020-12-30 00:00 – Updated: 2024-08-04 15:56
VLAI
Title
XXE in Nokogiri
Summary
Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri before version 1.11.0.rc4 there is an XXE vulnerability. XML Schemas parsed by Nokogiri::XML::Schema are trusted by default, allowing external resources to be accessed over the network, potentially enabling XXE or SSRF attacks. This behavior is counter to the security policy followed by Nokogiri maintainers, which is to treat all input as untrusted by default whenever possible. This is fixed in Nokogiri version 1.11.0.rc4.
Severity
CWE
- CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.11.0.rc4
|
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CVE-2026-57438 (GCVE-0-2026-57438)
Vulnerability from cvelistv5 – Published: 2026-06-25 14:39 – Updated: 2026-06-25 16:23
VLAI
Title
Nokogiri: Possible Use-After-Free in XInclude Processing
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, XInclude substitution performed by Nokogiri::XML::Node#do_xinclude replaced each <xi:include> in place, freeing the include node along with its children (such as <xi:fallback> and its descendants) and any namespaces declared on them. If an application had already exposed one of those nodes or namespaces to Ruby, the corresponding Ruby object was left pointing at freed memory. Using the object could result in invalid reads or writes to memory. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57437 (GCVE-0-2026-57437)
Vulnerability from cvelistv5 – Published: 2026-06-25 14:34 – Updated: 2026-06-25 15:00
VLAI
Title
Nokogiri: Possible Use-After-Free when directly using `NokogirI::XML::XPathContext` beyond document lifetime
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::XPathContext did not keep its source document alive for garbage collection. If an XPathContext outlived its document and the document was collected, evaluating an XPath expression could read invalid memory and potentially segfault. This is only reachable when application code constructs an XPathContext directly and lets the document become unreachable while continuing to use the context. The normal Document#xpath, #css, and related search methods are not affected, and it is not triggerable by malicious document input. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57436 (GCVE-0-2026-57436)
Vulnerability from cvelistv5 – Published: 2026-06-25 14:33 – Updated: 2026-06-25 23:27
VLAI
Title
Nokogiri: Possible Use-After-Free when setting `Document#root=` to an invalid node type
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::Document#root= 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. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57435 (GCVE-0-2026-57435)
Vulnerability from cvelistv5 – Published: 2026-06-25 14:32 – Updated: 2026-06-25 14:53
VLAI
Title
Nokogiri: Possible Use-After-Free when setting an attribute value via `Nokogiri::XML::Attr#value=` or `#content=`
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri’s CRuby native extension could leave a Ruby wrapper pointing to freed memory when replacing the value of an XML attribute. If Ruby code had already accessed an attribute child node, Nokogiri::XML::Attr#value= could free the underlying native child node while the wrapper remained reachable through the document node cache. A later use of the freed child node or a Ruby GC mark could dereference an invalid pointer, causing an invalid read and a possible segfault. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57434 (GCVE-0-2026-57434)
Vulnerability from cvelistv5 – Published: 2026-06-25 14:32 – Updated: 2026-06-25 15:48
VLAI
Title
Nokogiri: Null Pointer Dereference calling methods on uninitialized wrapper classes
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri contains a bug when calling certain methods on allocated-but-uninitialized native wrapper classes that inherit from Nokogiri::XML::Node. This caused a NULL pointer dereference that could crash the process. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57235 (GCVE-0-2026-57235)
Vulnerability from cvelistv5 – Published: 2026-06-25 14:31 – Updated: 2026-06-25 15:41
VLAI
Title
Nokogiri: Possible Out-of-Bounds Read in `Nokogiri::XML::NodeSet#[]`
Summary
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 negative index could pass the check and then be used at full width, reading outside the node set's storage. On CRuby this is an out-of-bounds read that typically crashes the process; on JRuby it is not memory-unsafe but returns an incorrect node. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57234 (GCVE-0-2026-57234)
Vulnerability from cvelistv5 – Published: 2026-06-25 14:30 – Updated: 2026-06-25 15:05
VLAI
Title
Nokogiri: XML::Schema on JRuby allows network requests when NONET is set, bypassing CVE-2020-26247
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, the NONET parse option, which Nokogiri turns on by default for Nokogiri::XML::Schema (see CVE-2020-26247), was not correctly enforced on the JRuby implementation. As a result, a schema parsed with default options could still cause external resources to be fetched over the network, potentially enabling SSRF or XXE attacks. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2026-57236 (GCVE-0-2026-57236)
Vulnerability from cvelistv5 – Published: 2026-06-25 14:29 – Updated: 2026-06-25 15:32
VLAI
Title
Nokogiri: Possible Use-After-Free when `Nokogiri::XML::Document#encoding=` raises an exception
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, calling Document#encoding= 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 replacing it. The document is left referencing freed memory, so the next call to Document#encoding reads invalid memory, which can cause a segfault or leak freed bytes into a Ruby String. Affects the CRuby (libxml2) implementation only; JRuby is not affected. This vulnerability is fixed in 1.19.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.19.4
|
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CVE-2025-6494 (GCVE-0-2025-6494)
Vulnerability from cvelistv5 – Published: 2025-06-22 22:31 – Updated: 2025-06-30 19:09 Disputed
VLAI
Title
sparklemotion nokogiri hashmap.c hashmap_get_with_hash heap-based overflow
Summary
A vulnerability was found in sparklemotion nokogiri c29c920907366cb74af13b4dc2230e9c9e23b833. It has been classified as problematic. This affects the function hashmap_get_with_hash of the file gumbo-parser/src/hashmap.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The patch is named ada4708e5a67114402cd3feb70a4e1d1d7cf773a. It is recommended to apply a patch to fix this issue. The project maintainer explains that the affected code was merged into the main branch but the commit never appeared in an official release.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.313611 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.313611 | signaturepermissions-required |
| https://vuldb.com/?submit.601006 | third-party-advisory |
| https://github.com/sparklemotion/nokogiri/issues/3508 | issue-tracking |
| https://github.com/sparklemotion/nokogiri/pull/3524 | issue-tracking |
| https://github.com/user-attachments/files/1982527… | exploit |
| https://github.com/sparklemotion/nokogiri/commit/… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
c29c920907366cb74af13b4dc2230e9c9e23b833
|
Credits
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CVE-2025-6490 (GCVE-0-2025-6490)
Vulnerability from cvelistv5 – Published: 2025-06-22 19:00 – Updated: 2025-06-30 19:09 Disputed
VLAI
Title
sparklemotion nokogiri hashmap.c hashmap_set_with_hash heap-based overflow
Summary
A vulnerability was found in sparklemotion nokogiri c29c920907366cb74af13b4dc2230e9c9e23b833 and classified as problematic. This issue affects the function hashmap_set_with_hash of the file gumbo-parser/src/hashmap.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The identifier of the patch is ada4708e5a67114402cd3feb70a4e1d1d7cf773a. It is recommended to apply a patch to fix this issue. The project maintainer explains that the affected code was merged into the main branch but the commit never appeared in an official release.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.313601 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.313601 | signaturepermissions-required |
| https://vuldb.com/?submit.601005 | third-party-advisory |
| https://github.com/sparklemotion/nokogiri/issues/3500 | issue-tracking |
| https://github.com/sparklemotion/nokogiri/pull/3524 | issue-tracking |
| https://github.com/user-attachments/files/1962543… | exploit |
| https://github.com/sparklemotion/nokogiri/commit/… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
c29c920907366cb74af13b4dc2230e9c9e23b833
|
Credits
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CVE-2022-23476 (GCVE-0-2022-23476)
Vulnerability from cvelistv5 – Published: 2022-12-08 03:03 – Updated: 2025-04-23 16:31
VLAI
Title
Unchecked return value from xmlTextReaderExpand in Nokogiri
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Nokogiri `1.13.8` and `1.13.9` fail to check the return value from `xmlTextReaderExpand` in the method `Nokogiri::XML::Reader#attribute_hash`. This can lead to a null pointer exception when invalid markup is being parsed. For applications using `XML::Reader` to parse untrusted inputs, this may potentially be a vector for a denial of service attack. Users are advised to upgrade to Nokogiri `>= 1.13.10`. Users may be able to search their code for calls to either `XML::Reader#attributes` or `XML::Reader#attribute_hash` to determine if they are affected.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
| https://github.com/sparklemotion/nokogiri/commit/… | x_refsource_MISC |
| https://github.com/sparklemotion/nokogiri/commit/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
>= 1.13.8, < 1.13.10
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CVE-2022-29181 (GCVE-0-2022-29181)
Vulnerability from cvelistv5 – Published: 2022-05-20 00:00 – Updated: 2025-05-27 14:51
VLAI
Title
Improper Handling of Unexpected Data Type in Nokogiri
Summary
Nokogiri is an open source XML and HTML library for Ruby. Nokogiri prior to version 1.13.6 does not type-check all inputs into the XML and HTML4 SAX parsers, allowing specially crafted untrusted inputs to cause illegal memory access errors (segfault) or reads from unrelated memory. Version 1.13.6 contains a patch for this issue. As a workaround, ensure the untrusted input is a `String` by calling `#to_s` or equivalent.
Severity
8.2 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-241 - Improper Handling of Unexpected Data Type
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
| https://github.com/sparklemotion/nokogiri/commit/… | x_refsource_MISC |
| https://github.com/sparklemotion/nokogiri/commit/… | x_refsource_MISC |
| https://github.com/sparklemotion/nokogiri/release… | x_refsource_MISC |
| https://securitylab.github.com/advisories/GHSL-20… | x_refsource_MISC |
| https://securitylab.github.com/advisories/GHSL-20… | x_transferred |
| https://security.gentoo.org/glsa/202208-29 | vendor-advisoryx_transferred |
| https://support.apple.com/kb/HT213532 | x_transferred |
| http://seclists.org/fulldisclosure/2022/Dec/23 | mailing-listx_transferred |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.13.6
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CVE-2022-24836 (GCVE-0-2022-24836)
Vulnerability from cvelistv5 – Published: 2022-04-11 00:00 – Updated: 2024-09-03 12:03
VLAI
Title
Inefficient Regular Expression Complexity in Nokogiri
Summary
Nokogiri is an open source XML and HTML library for Ruby. Nokogiri `< v1.13.4` contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to detect encoding in HTML documents. Users are advised to upgrade to Nokogiri `>= 1.13.4`. There are no known workarounds for this issue.
Severity
7.5 (High)
CWE
Assigner
References
11 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.13.4
|
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CVE-2021-41098 (GCVE-0-2021-41098)
Vulnerability from cvelistv5 – Published: 2021-09-27 19:35 – Updated: 2024-08-04 02:59
VLAI
Title
Improper Restriction of XML External Entity Reference (XXE) in Nokogiri on JRuby
Summary
Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri v1.12.4 and earlier, on JRuby only, the SAX parser resolves external entities by default. Users of Nokogiri on JRuby who parse untrusted documents using any of these classes are affected: Nokogiri::XML::SAX::Parse, Nokogiri::HTML4::SAX::Parser or its alias Nokogiri::HTML::SAX::Parser, Nokogiri::XML::SAX::PushParser, and Nokogiri::HTML4::SAX::PushParser or its alias Nokogiri::HTML::SAX::PushParser. JRuby users should upgrade to Nokogiri v1.12.5 or later to receive a patch for this issue. There are no workarounds available for v1.12.4 or earlier. CRuby users are not affected.
Severity
7.5 (High)
CWE
- CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | x_refsource_CONFIRM |
| https://github.com/sparklemotion/nokogiri/commit/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.12.5
|
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CVE-2020-26247 (GCVE-0-2020-26247)
Vulnerability from cvelistv5 – Published: 2020-12-30 00:00 – Updated: 2024-08-04 15:56
VLAI
Title
XXE in Nokogiri
Summary
Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri before version 1.11.0.rc4 there is an XXE vulnerability. XML Schemas parsed by Nokogiri::XML::Schema are trusted by default, allowing external resources to be accessed over the network, potentially enabling XXE or SSRF attacks. This behavior is counter to the security policy followed by Nokogiri maintainers, which is to treat all input as untrusted by default whenever possible. This is fixed in Nokogiri version 1.11.0.rc4.
Severity
CWE
- CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
< 1.11.0.rc4
|
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"url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00018.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "nokogiri",
"vendor": "sparklemotion",
"versions": [
{
"status": "affected",
"version": "\u003c 1.11.0.rc4"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri before version 1.11.0.rc4 there is an XXE vulnerability. XML Schemas parsed by Nokogiri::XML::Schema are trusted by default, allowing external resources to be accessed over the network, potentially enabling XXE or SSRF attacks. This behavior is counter to the security policy followed by Nokogiri maintainers, which is to treat all input as untrusted by default whenever possible. This is fixed in Nokogiri version 1.11.0.rc4."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 2.6,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-611",
"description": "CWE-611: Improper Restriction of XML External Entity Reference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-10-12T00:00:00.000Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-vr8q-g5c7-m54m"
},
{
"url": "https://rubygems.org/gems/nokogiri"
},
{
"url": "https://hackerone.com/reports/747489"
},
{
"url": "https://github.com/sparklemotion/nokogiri/releases/tag/v1.11.0.rc4"
},
{
"url": "https://github.com/sparklemotion/nokogiri/commit/9c87439d9afa14a365ff13e73adc809cb2c3d97b"
},
{
"name": "[debian-lts-announce] 20210606 [SECURITY] [DLA 2678-1] ruby-nokogiri security update",
"tags": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00007.html"
},
{
"name": "GLSA-202208-29",
"tags": [
"vendor-advisory"
],
"url": "https://security.gentoo.org/glsa/202208-29"
},
{
"name": "[debian-lts-announce] 20221012 [SECURITY] [DLA 3149-1] ruby-nokogiri security update",
"tags": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00018.html"
}
],
"source": {
"advisory": "GHSA-vr8q-g5c7-m54m",
"discovery": "UNKNOWN"
},
"title": "XXE in Nokogiri"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2020-26247",
"datePublished": "2020-12-30T00:00:00.000Z",
"dateReserved": "2020-10-01T00:00:00.000Z",
"dateUpdated": "2024-08-04T15:56:04.939Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}