Withdrawn: this CVE is not a vulnerability
The assigning CNA withdrew CVE-2022-50998 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WITHDRAWN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-2022-50998
Nokogiri before 1.13.9 Multiple Vulnerabilities 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, 3:17 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-2022-50998 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-50998 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 Modified by [email protected]
Sep. 08, 2026
Action Type Old Value New Value Changed Description Nokogiri before 1.13.9 (CRuby implementation using packaged libraries) bundles libxml2 v2.9.14, which is affected by CVE-2022-40304 (data corruption / double-free from an entity reference cycle when entity content is allocated from a dict) and CVE-2022-40303 (integer overflows when parsing with XML_PARSE_HUGE). Nokogiri 1.13.9 upgrades the packaged libxml2 to v2.10.3 to address these issues. Processing crafted XML input may lead to denial of service or memory corruption. (The advisory also references CVE-2022-2309, a NULL pointer dereference via iterwalk/canonicalize, which maintainers determined does not affect Nokogiri users.) 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:L/A:H Removed CWE VulnCheck: CWE-476 Removed CWE nvd-ai-agent-0.3.0-gemma-4-31B-it: CWE-787 Removed CPE Configuration OR *cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:ruby:*:* versions up to (excluding) 1.13.9 Removed CPE Configuration OR *cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:*:*:* versions up to (excluding) 1.13.9 Added Affected Affected value removed. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2022/50xxx/CVE-2022-50998.json">CVE-2022-50998</a> Removed Reference VulnCheck: https://github.com/GNOME/libxml2/commit/644a89e080bced793295f61f18aac8cfad6bece2 Removed Reference VulnCheck: https://github.com/GNOME/libxml2/commit/c846986356fc149915a74972bf198abc266bc2c0 Removed Reference VulnCheck: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-2qc6-mcvw-92cw Removed Reference VulnCheck: https://www.vulncheck.com/advisories/nokogiri-before-multiple-vulnerabilities-via-libxml2-2 Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/commit/644a89e080bced793295f61f18aac8cfad6bece2 Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/commit/c846986356fc149915a74972bf198abc266bc2c0 Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-2qc6-mcvw-92cw Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://www.vulncheck.com/advisories/nokogiri-before-multiple-vulnerabilities-via-libxml2-2 Removed Reference Type VulnCheck: https://github.com/GNOME/libxml2/commit/644a89e080bced793295f61f18aac8cfad6bece2 Types: Patch Removed Reference Type VulnCheck: https://github.com/GNOME/libxml2/commit/c846986356fc149915a74972bf198abc266bc2c0 Types: Patch Removed Reference Type VulnCheck: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-2qc6-mcvw-92cw Types: Mitigation, Vendor Advisory Removed Reference Type VulnCheck: https://www.vulncheck.com/advisories/nokogiri-before-multiple-vulnerabilities-via-libxml2-2 Types: Third Party Advisory Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/commit/644a89e080bced793295f61f18aac8cfad6bece2 Types: Broken Link Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/commit/c846986356fc149915a74972bf198abc266bc2c0 Types: Broken Link Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-2qc6-mcvw-92cw Types: Mitigation, Vendor Advisory Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://www.vulncheck.com/advisories/nokogiri-before-multiple-vulnerabilities-via-libxml2-2 Types: Broken Link -
CVE Rejected by [email protected]
Sep. 08, 2026
Action Type Old Value New Value -
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) 1.13.9 Added Reference Type VulnCheck: https://github.com/GNOME/libxml2/commit/644a89e080bced793295f61f18aac8cfad6bece2 Types: Patch Added Reference Type VulnCheck: https://github.com/GNOME/libxml2/commit/c846986356fc149915a74972bf198abc266bc2c0 Types: Patch Added Reference Type VulnCheck: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-2qc6-mcvw-92cw Types: Mitigation, Vendor Advisory Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/nokogiri-before-multiple-vulnerabilities-via-libxml2-2 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/644a89e080bced793295f61f18aac8cfad6bece2 Added Reference https://github.com/GNOME/libxml2/commit/c846986356fc149915a74972bf198abc266bc2c0 Removed Reference https://github.com/sparklemotion/nokogiri/commit/644a89e080bced793295f61f18aac8cfad6bece2 Removed Reference https://github.com/sparklemotion/nokogiri/commit/c846986356fc149915a74972bf198abc266bc2c0 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 27, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2022-50998', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-27T15:20:19.266640Z'} -
CVE Modified by [email protected]
Aug. 27, 2026
Action Type Old Value New Value Added Reference https://github.com/sparklemotion/nokogiri/commit/644a89e080bced793295f61f18aac8cfad6bece2 Added Reference https://github.com/sparklemotion/nokogiri/commit/c846986356fc149915a74972bf198abc266bc2c0 Added Reference https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-2qc6-mcvw-92cw Added Reference https://www.vulncheck.com/advisories/nokogiri-before-multiple-vulnerabilities-via-libxml2-2 Removed Reference https://github.com/sparklemotion/nokogiri/commit/644a89e080bced793295f61f18aac8cfad6bece2 Removed Reference https://github.com/sparklemotion/nokogiri/commit/c846986356fc149915a74972bf198abc266bc2c0 Removed Reference https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-2qc6-mcvw-92cw Removed Reference https://www.vulncheck.com/advisories/nokogiri-before-multiple-vulnerabilities-via-libxml2-2 -
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': '1.13.9', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '1.13.9', 'versionType': 'semver'}], 'packageURL': 'pkg:gem/nokogiri', 'defaultStatus': 'unaffected'}] Added Description Nokogiri before 1.13.9 (CRuby implementation using packaged libraries) bundles libxml2 v2.9.14, which is affected by CVE-2022-40304 (data corruption / double-free from an entity reference cycle when entity content is allocated from a dict) and CVE-2022-40303 (integer overflows when parsing with XML_PARSE_HUGE). Nokogiri 1.13.9 upgrades the packaged libxml2 to v2.10.3 to address these issues. Processing crafted XML input may lead to denial of service or memory corruption. (The advisory also references CVE-2022-2309, a NULL pointer dereference via iterwalk/canonicalize, which maintainers determined does not affect Nokogiri users.) 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/644a89e080bced793295f61f18aac8cfad6bece2 Added Reference https://github.com/sparklemotion/nokogiri/commit/c846986356fc149915a74972bf198abc266bc2c0 Added Reference https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-2qc6-mcvw-92cw Added Reference https://www.vulncheck.com/advisories/nokogiri-before-multiple-vulnerabilities-via-libxml2-2
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.