CVE-2025-71407
Nokogiri before 1.18.3 contains a stack buffer overflow vulnerability in libxml2 when reporting...
This CVE ID has been rejected as a duplicate.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
What each source reports
GitHub Advisories Score usedGHSA-hfqg-gq7v-xwpg
Nokogiri before 1.18.3 contains a stack buffer overflow vulnerability in libxml2 when reporting...
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 DTD content or untrusted XSD files to cause denial of service or potential code execution.
- Record
GHSA-hfqg-gq7v-xwpg- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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 - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
This CVE ID has been rejected as a duplicate.
- Record
CVE-2025-71407- Updated
- 2026-11-02
EUVDEUVD-2025-210774
This CVE ID has been rejected as a duplicate.
- Record
EUVD-2025-210774- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-vvfq-8hwr-qm4m No score
Nokogiri updates packaged libxml2 to 2.13.6 to resolve CVE-2025-24928 and CVE-2024-56171
Summary
Nokogiri v1.18.3 upgrades its dependency libxml2 to v2.13.6.
libxml2 v2.13.6 addresses:
- CVE-2025-24928
- described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/847
- CVE-2024-56171
- described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/828
Impact
CVE-2025-24928
Stack-buffer overflow is possible when reporting DTD validation errors if the input contains a long (~3kb) QName prefix.
CVE-2024-56171
Use-after-free is possible during validation against untrusted XML Schemas (.xsd) and, potentially, validation of untrusted documents against trusted Schemas if they make use of xsd:keyref in combination with recursively defined types that have additional identity constraints.
- Record
GHSA-vvfq-8hwr-qm4m- Weakness
- CWE-121, CWE-416, CWE-1395
- Updated
- 2026-11-02
NVD No score
Rejected reason: This CVE ID has been rejected as a duplicate.
- Record
CVE-2025-71407- Updated
- 2026-11-02
OSV
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 DTD content or untrusted XSD files to cause denial of service or potential code execution.
- Record
CVE-2025-71407- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-787
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2025-71407
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 DTD content or untrusted XSD files to cause denial of service or potential code execution.
- Record
UBUNTU-CVE-2025-71407- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-vvfq-8hwr-qm4m No score
Nokogiri updates packaged libxml2 to 2.13.6 to resolve CVE-2025-24928 and CVE-2024-56171
Summary
Nokogiri v1.18.3 upgrades its dependency libxml2 to v2.13.6.
libxml2 v2.13.6 addresses:
- CVE-2025-24928
- described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/847
- CVE-2024-56171
- described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/828
Impact
CVE-2025-24928
Stack-buffer overflow is possible when reporting DTD validation errors if the input contains a long (~3kb) QName prefix.
CVE-2024-56171
Use-after-free is possible during validation against untrusted XML Schemas (.xsd) and, potentially, validation of untrusted documents against trusted Schemas if they make use of xsd:keyref in combination with recursively defined types that have additional identity constraints.
- Record
GHSA-vvfq-8hwr-qm4m- Weakness
- CWE-121, CWE-1395, CWE-416
- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
nokogiriRubyGems |
before 1.18.3 | 1.18.3 |
nokogiriRubyGems |
before 1.18.3, plus listed versions 1.0.01.0.11.0.21.0.31.0.4 Show 45 moreShow less1.0.51.0.61.0.71.1.01.1.11.10.01.10.0.rc11.10.11.10.101.10.21.10.31.10.41.10.51.10.61.10.71.10.81.10.91.11.01.11.0.rc11.11.0.rc21.11.0.rc31.11.0.rc41.11.11.11.21.11.31.11.41.11.51.11.61.11.71.12.01.12.0.rc11.12.11.12.21.12.31.12.41.12.51.13.01.13.11.13.101.13.21.13.31.13.41.13.51.13.61.13.7 |
1.18.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-71407 has been rejected by its source and should not be treated as a live vulnerability, published February 18, 2025. Fixed in nokogiri 1.18.3.
References
github.com/sparklemotion/nokogiri/security/advisories/GHSA-vvfq-8hwr-qm4m
nvd.nist.gov/vuln/detail/CVE-2025-71407
vulncheck.com/advisories/nokogiri-before-stack-buffer-overflow-and-use-after-free
Left out here: 132 versions. The JSON record has them.