CVE-2026-79769
published 2026-08-25CVE-2026-79769: Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node#initialize_copy_with_args helper behind…
PriorityP424medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.31%
22.2th percentile
Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node#initialize_copy_with_args helper behind Node#dup and #clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a non-Node argument (e.g., a Namespace), it reads an xmlNs out of bounds, crashing the process. This is only triggerable by a programming error and cannot be triggered by untrusted input or normal use of the public API. Only CRuby is affected. Version 1.19.4 adds a type check and raises TypeError.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| 3scale-amp2 | backend-rhel8 | — | — |
| 3scale-amp2 | system-rhel8 | — | — |
| 3scale-amp2 | system-rhel9 | — | — |
| 3scale-amp2 | toolbox-rhel9 | — | — |
| 3scale-amp2 | zync-rhel9 | — | — |
| satellite_el8 | rubygem-nokogiri | — | — |
| sparklemotion | nokogiri | < 1.19.4 | 1.19.4 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv4.08.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vendor_redhat5.5MEDIUM
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Red Hat
nokogiri: Nokogiri: Process crash due to invalid memory read via programming error in internal method
vendor_redhat·2026-08-25·CVSS 5.5
CVE-2026-79769 [MEDIUM] CWE-843 nokogiri: Nokogiri: Process crash due to invalid memory read via programming error in internal method
nokogiri: Nokogiri: Process crash due to invalid memory read via programming error in internal method
Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node#initialize_copy_with_args helper behind Node#dup and #clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a non-Node argument (e.g., a Namespace), it reads an xmlNs out of bounds, crashing the process. This is only triggerable by a programming error and cannot be triggered by untrusted input or normal use of the public API. Only CRuby is affected. Version 1.19.4 adds a type check and raises TypeError.
A flaw was found in Nokogiri. This vulnerability involves a possible invalid memory read in t
GHSA
Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node#initialize_copy_with_args helper behind Node#dup and #clone, which unwrapped its s
ghsa_unreviewed·2026-08-25
CVE-2026-79769 [HIGH] CWE-843 Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node#initialize_copy_with_args helper behind Node#dup and #clone, which unwrapped its s
Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node#initialize_copy_with_args helper behind Node#dup and #clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a non-Node argument (e.g., a Namespace), it reads an xmlNs out of bounds, crashing the process. This is only triggerable by a programming error and cannot be triggered by untrusted input or normal use of the public API. Only CRuby is affected. Version 1.19.4 adds a type check and raises TypeError.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-79769 rubygem-nokogiri: Nokogiri: Process crash due to invalid memory read via programming error in internal method [epel-all]
bugzilla·2026-08-27·CVSS 5.5
CVE-2026-79769 [MEDIUM] CVE-2026-79769 rubygem-nokogiri: Nokogiri: Process crash due to invalid memory read via programming error in internal method [epel-all]
CVE-2026-79769 rubygem-nokogiri: Nokogiri: Process crash due to invalid memory read via programming error in internal method [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node#initialize_copy_with_args helper behind Node#dup and #clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a non-Node argument (e.g., a Namespace), it reads an xmlNs out of bounds, crashing the process. This is only triggerable by a programm
Bugzilla
CVE-2026-79769 rubygem-nokogiri: Nokogiri: Process crash due to invalid memory read via programming error in internal method [fedora-all]
bugzilla·2026-08-27·CVSS 5.5
CVE-2026-79769 [MEDIUM] CVE-2026-79769 rubygem-nokogiri: Nokogiri: Process crash due to invalid memory read via programming error in internal method [fedora-all]
CVE-2026-79769 rubygem-nokogiri: Nokogiri: Process crash due to invalid memory read via programming error in internal method [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node#initialize_copy_with_args helper behind Node#dup and #clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a non-Node argument (e.g., a Namespace), it reads an xmlNs out of bounds, crashing the process. This is only triggerable by a progra
Bugzilla
CVE-2026-79769 nokogiri: Nokogiri: Process crash due to invalid memory read via programming error in internal method
bugzilla·2026-08-25·CVSS 5.5
CVE-2026-79769 [MEDIUM] CVE-2026-79769 nokogiri: Nokogiri: Process crash due to invalid memory read via programming error in internal method
CVE-2026-79769 nokogiri: Nokogiri: Process crash due to invalid memory read via programming error in internal method
Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node#initialize_copy_with_args helper behind Node#dup and #clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a non-Node argument (e.g., a Namespace), it reads an xmlNs out of bounds, crashing the process. This is only triggerable by a programming error and cannot be triggered by untrusted input or normal use of the public API. Only CRuby is affected. Version 1.19.4 adds a type check and raises TypeError.
2026-08-25
Published