Withdrawn: this CVE is not a vulnerability
The assigning CNA withdrew CVE-2023-54354 on 8 September 2026, and it carries the Rejected state at CVE.org and NVD. It must not be treated as a live finding. Its pre-withdrawal severity, score and exploitability are withheld below; the record itself is kept because withdrawals are reversible and because the reject reason is the correction worth publishing.
WITHDRAWN
CVE-2023-54354
Nokogiri before 1.14.3 Null Pointer Dereference via libxml2
Overview
Description
Rejected reason: This CVE ID has been rejected as a duplicate.
Details
INFO
Published Date :
Aug. 25, 2026, 4:16 p.m.
Last Modified :
Sept. 8, 2026, 3:18 p.m.
Remotely Exploit :
—
Source :
[email protected]
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-54354 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-54354 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Rejected by [email protected]
Sep. 08, 2026
Action Type Old Value New Value -
CVE Modified by [email protected]
Sep. 08, 2026
Action Type Old Value New Value Changed Description 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 crafted/malformed XML schema can cause libxml2 to dereference a NULL pointer and potentially segfault, resulting in a denial of service. Nokogiri 1.14.3 upgrades the packaged libxml2 to v2.10.4 to resolve these issues. Rejected reason: This CVE ID has been rejected as a duplicate. Removed CVSS V4.0 VulnCheck: 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 Removed CVSS V3.1 VulnCheck: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Removed CVSS V3.1 nvd-ai-agent-0.3.0-gemma-4-31B-it: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Removed CWE VulnCheck: CWE-476 Removed CWE nvd-ai-agent-0.3.0-gemma-4-31B-it: CWE-476 Removed CPE Configuration OR *cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:ruby:*:* versions up to (excluding) 1.14.3 Removed CPE Configuration OR *cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:*:*:* versions up to (excluding) 1.14.3 Added Affected Affected value removed. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2023/54xxx/CVE-2023-54354.json">CVE-2023-54354</a> Removed Reference VulnCheck: https://github.com/GNOME/libxml2/commit/09a2dd453007f9c7205274623acdd73747c22d64 Removed Reference VulnCheck: https://github.com/GNOME/libxml2/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6 Removed Reference VulnCheck: https://github.com/GNOME/libxml2/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f Removed Reference VulnCheck: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-pxvg-2qj5-37jq Removed Reference VulnCheck: https://www.vulncheck.com/advisories/nokogiri-before-null-pointer-dereference-via-libxml2 Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/commit/09a2dd453007f9c7205274623acdd73747c22d64 Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6 Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-pxvg-2qj5-37jq Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://www.vulncheck.com/advisories/nokogiri-before-null-pointer-dereference-via-libxml2 Removed Reference Type VulnCheck: https://github.com/GNOME/libxml2/commit/09a2dd453007f9c7205274623acdd73747c22d64 Types: Patch Removed Reference Type VulnCheck: https://github.com/GNOME/libxml2/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6 Types: Patch Removed Reference Type VulnCheck: https://github.com/GNOME/libxml2/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f Types: Patch Removed Reference Type VulnCheck: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-pxvg-2qj5-37jq Types: Mitigation, Vendor Advisory Removed Reference Type VulnCheck: https://www.vulncheck.com/advisories/nokogiri-before-null-pointer-dereference-via-libxml2 Types: Third Party Advisory Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/commit/09a2dd453007f9c7205274623acdd73747c22d64 Types: Broken Link Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6 Types: Broken Link Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f Types: Broken Link Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-pxvg-2qj5-37jq Types: Mitigation, Vendor Advisory Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://www.vulncheck.com/advisories/nokogiri-before-null-pointer-dereference-via-libxml2 Types: Broken Link -
Initial Analysis by [email protected]
Sep. 01, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:ruby:*:* versions up to (excluding) 1.14.3 Added Reference Type VulnCheck: https://github.com/GNOME/libxml2/commit/09a2dd453007f9c7205274623acdd73747c22d64 Types: Patch Added Reference Type VulnCheck: https://github.com/GNOME/libxml2/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6 Types: Patch Added Reference Type VulnCheck: https://github.com/GNOME/libxml2/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f Types: Patch Added Reference Type VulnCheck: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-pxvg-2qj5-37jq Types: Mitigation, Vendor Advisory Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/nokogiri-before-null-pointer-dereference-via-libxml2 Types: Third Party Advisory -
CVE Modified by [email protected]
Aug. 28, 2026
Action Type Old Value New Value Added Reference https://github.com/GNOME/libxml2/commit/09a2dd453007f9c7205274623acdd73747c22d64 Added Reference https://github.com/GNOME/libxml2/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6 Added Reference https://github.com/GNOME/libxml2/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f Added Reference https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-pxvg-2qj5-37jq Added Reference https://www.vulncheck.com/advisories/nokogiri-before-null-pointer-dereference-via-libxml2 Removed Reference https://github.com/sparklemotion/nokogiri/commit/09a2dd453007f9c7205274623acdd73747c22d64 Removed Reference https://github.com/sparklemotion/nokogiri/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6 Removed Reference https://github.com/sparklemotion/nokogiri/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f Removed Reference https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-pxvg-2qj5-37jq Removed Reference https://www.vulncheck.com/advisories/nokogiri-before-null-pointer-dereference-via-libxml2 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 25, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2023-54354', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-25T16:11:24.833421Z'} -
New CVE Received by [email protected]
Aug. 25, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'sparklemotion', 'product': 'nokogiri', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.14.3', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '1.14.3', 'versionType': 'semver'}], 'packageURL': 'pkg:gem/nokogiri', 'defaultStatus': 'unaffected'}] Added Description 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 crafted/malformed XML schema can cause libxml2 to dereference a NULL pointer and potentially segfault, resulting in a denial of service. Nokogiri 1.14.3 upgrades the packaged libxml2 to v2.10.4 to resolve these issues. Added CVSS V4.0 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 Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added Reference https://github.com/sparklemotion/nokogiri/commit/09a2dd453007f9c7205274623acdd73747c22d64 Added Reference https://github.com/sparklemotion/nokogiri/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6 Added Reference https://github.com/sparklemotion/nokogiri/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f Added Reference https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-pxvg-2qj5-37jq Added Reference https://www.vulncheck.com/advisories/nokogiri-before-null-pointer-dereference-via-libxml2
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.