{"id":"CVE-2022-50999","aliases":["EUVD-2022-56024","GHSA-cgx6-hpwq-fhv5","GHSA-wf4q-gp79-7pv3","UBUNTU-CVE-2022-50999"],"status":"rejected","title":"Integer Overflow or Wraparound in libxml2 affects Nokogiri","description":"This CVE ID has been rejected as a duplicate.","severity":{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/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","level":"high","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119","CWE-190"],"published":"2022-05-18T20:06:48Z","modified":"2026-09-16T14:01:07Z","fixes":[{"ecosystem":"RubyGems","package":"nokogiri","fixed_in":["1.13.5"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"RubyGems","package":"nokogiri","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.5"}]}]},{"source":"osv","ecosystem":"RubyGems","package":"nokogiri","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.5"}]}],"versions":["1.0.0","1.0.1","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6","1.0.7","1.1.0","1.1.1","1.10.0","1.10.0.rc1","1.10.1","1.10.10","1.10.2","1.10.3","1.10.4","1.10.5","1.10.6","1.10.7","1.10.8","1.10.9","1.11.0","1.11.0.rc1","1.11.0.rc2","1.11.0.rc3","1.11.0.rc4","1.11.1","1.11.2","1.11.3","1.11.4","1.11.5","1.11.6","1.11.7","1.12.0","1.12.0.rc1","1.12.1","1.12.2","1.12.3","1.12.4","1.12.5","1.13.0","1.13.1","1.13.2","1.13.3","1.13.4","1.2.0","1.2.1","1.2.2","1.2.3","1.3.0","1.3.1","1.3.2","1.3.3","1.4.0","1.4.1","1.4.2","1.4.2.1","1.4.3","1.4.3.1","1.4.4","1.4.4.1","1.4.4.2","1.4.5","1.4.6","1.4.7","1.5.0","1.5.0.beta.1","1.5.0.beta.2","1.5.0.beta.3","1.5.0.beta.4","1.5.1","1.5.1.rc1","1.5.10","1.5.11","1.5.2","1.5.3","1.5.3.rc2","1.5.3.rc3","1.5.3.rc4","1.5.3.rc5","1.5.3.rc6","1.5.4","1.5.4.rc1","1.5.4.rc2","1.5.4.rc3","1.5.5","1.5.5.rc1","1.5.5.rc2","1.5.5.rc3","1.5.6","1.5.6.rc1","1.5.6.rc2","1.5.6.rc3","1.5.7","1.5.7.rc1","1.5.7.rc2","1.5.7.rc3","1.5.8","1.5.9","1.6.0","1.6.0.rc1","1.6.1","1.6.2","1.6.2.1","1.6.2.rc1","1.6.2.rc2","1.6.2.rc3","1.6.3","1.6.3.1","1.6.3.rc1","1.6.3.rc2","1.6.3.rc3","1.6.4","1.6.4.1","1.6.5","1.6.6.1","1.6.6.2","1.6.6.3","1.6.6.4","1.6.7","1.6.7.1","1.6.7.2","1.6.7.rc2","1.6.7.rc3","1.6.7.rc4","1.6.8","1.6.8.1","1.6.8.rc1","1.6.8.rc2","1.6.8.rc3","1.7.0","1.7.0.1","1.7.1","1.7.2","1.8.0","1.8.1","1.8.2","1.8.3","1.8.4","1.8.5","1.9.0","1.9.0.rc1","1.9.1"]}],"references":[{"url":"https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-cgx6-hpwq-fhv5","tags":["advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-29824","tags":["advisory"]},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.9.14","tags":["web"]},{"url":"https://github.com/advisories/GHSA-cgx6-hpwq-fhv5"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50999","tags":["advisory"]},{"url":"https://github.com/sparklemotion/nokogiri/commit/2554a24"},{"url":"https://www.vulncheck.com/advisories/nokogiri-before-integer-overflow-via-libxml2","tags":["advisory","report"]},{"url":"https://github.com/GNOME/libxml2/commit/2554a24","tags":["fix","report"]},{"url":"https://github.com/advisories/GHSA-wf4q-gp79-7pv3"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50999.json","tags":["advisory"]},{"url":"https://github.com/sparklemotion/nokogiri","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2022-50999","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-50999","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2022-50999","description":"This CVE ID has been rejected as a duplicate.","status":"rejected","published":"2026-08-25T15:15:54.519Z","modified":"2026-09-08T14:57:43.948Z","updated_at":"2026-11-02T14:34:41.34666Z"}],"euvd":[{"id":"EUVD-2022-56024","description":"This CVE ID has been rejected as a duplicate.","status":"published","published":"2026-08-25T15:15:54Z","modified":"2026-09-08T14:57:43Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:28:29.426Z"}],"ghsa":[{"id":"GHSA-cgx6-hpwq-fhv5","title":"Integer Overflow or Wraparound in libxml2 affects Nokogiri","description":"### Summary\n\nNokogiri v1.13.5 upgrades the packaged version of its dependency libxml2 from v2.9.13 to [v2.9.14](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.9.14).\n\nlibxml2 v2.9.14 addresses [CVE-2022-29824](https://nvd.nist.gov/vuln/detail/CVE-2022-29824). This version also includes several security-related bug fixes for which CVEs were not created, including a potential double-free, potential memory leaks, and integer-overflow.\n\nPlease note that this advisory only applies to the CRuby implementation of Nokogiri `\u003c 1.13.5`, and only if the _packaged_ libraries are being used. If you've overridden defaults at installation time to use _system_ libraries instead of packaged libraries, you should instead pay attention to your distro's `libxml2` and `libxslt` release announcements.\n\n\n### Mitigation\n\nUpgrade to Nokogiri `\u003e= 1.13.5`.\n\nUsers who are unable to upgrade Nokogiri may also choose a more complicated mitigation: compile and link Nokogiri against external libraries libxml2 `\u003e= 2.9.14` which will also address these same issues.\n\n\n### Impact\n\n#### libxml2 [CVE-2022-29824](https://nvd.nist.gov/vuln/detail/CVE-2022-29824)\n\n- **CVSS3 score**:\n  - Unspecified upstream\n  - Nokogiri maintainers evaluate at 8.6 (High) ([CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H)). Note that this is different from the CVSS assessed by NVD.\n- **Type**: Denial of service, information disclosure\n- **Description**: In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2's buffer functions, for example libxslt through 1.1.35, is affected as well.\n- **Fixed**: https://gitlab.gnome.org/GNOME/libxml2/-/commit/2554a24\n\nAll versions of libml2 prior to v2.9.14 are affected.\n\nApplications parsing or serializing multi-gigabyte documents (in excess of INT_MAX bytes) may be vulnerable to an integer overflow bug in buffer handling that could lead to exposure of confidential data, modification of unrelated data, or a segmentation fault resulting in a denial-of-service.\n\n\n### References\n\n- [libxml2 v2.9.14 release notes](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.9.14)\n- [CVE-2022-29824](https://nvd.nist.gov/vuln/detail/CVE-2022-29824)\n- [CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer](https://cwe.mitre.org/data/definitions/119.html)\n\n","status":"published","published":"2022-05-18T20:06:48Z","modified":"2023-01-11T05:06:58Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:36:13.23016Z"},{"id":"GHSA-wf4q-gp79-7pv3","title":"Nokogiri versions before 1.13.5 contain an integer overflow vulnerability in packaged libxml2...","description":"Nokogiri versions before 1.13.5 contain an integer overflow vulnerability in packaged libxml2 buffer handling functions that allows attackers to cause out-of-bounds memory writes. Attackers can exploit this by crafting multi-gigabyte XML files to trigger buffer overflows resulting in information disclosure, data modification, or denial of service.","status":"published","published":"2026-08-25T18:31:49Z","modified":"2026-08-28T18:32:29Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/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","level":"high"},{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:11:07.541511Z"}],"nvd":[{"id":"CVE-2022-50999","description":"Rejected reason: This CVE ID has been rejected as a duplicate.","status":"rejected","published":"2026-08-25T16:16:44.24Z","modified":"2026-09-08T15:17:59.46Z","updated_at":"2026-11-02T14:07:43.752276Z"}],"osv":[{"id":"CVE-2022-50999","title":"Nokogiri before 1.13.5 Integer Overflow via libxml2","description":"Nokogiri versions before 1.13.5 contain an integer overflow vulnerability in packaged libxml2 buffer handling functions that allows attackers to cause out-of-bounds memory writes. Attackers can exploit this by crafting multi-gigabyte XML files to trigger buffer overflows resulting in information disclosure, data modification, or denial of service.","status":"published","published":"2026-08-25T15:15:54.519Z","modified":"2026-09-03T03:45:37.905104829Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:44:29.084154Z"},{"id":"GHSA-cgx6-hpwq-fhv5","title":"Integer Overflow or Wraparound in libxml2 affects Nokogiri","description":"### Summary\n\nNokogiri v1.13.5 upgrades the packaged version of its dependency libxml2 from v2.9.13 to [v2.9.14](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.9.14).\n\nlibxml2 v2.9.14 addresses [CVE-2022-29824](https://nvd.nist.gov/vuln/detail/CVE-2022-29824). This version also includes several security-related bug fixes for which CVEs were not created, including a potential double-free, potential memory leaks, and integer-overflow.\n\nPlease note that this advisory only applies to the CRuby implementation of Nokogiri `\u003c 1.13.5`, and only if the _packaged_ libraries are being used. If you've overridden defaults at installation time to use _system_ libraries instead of packaged libraries, you should instead pay attention to your distro's `libxml2` and `libxslt` release announcements.\n\n\n### Mitigation\n\nUpgrade to Nokogiri `\u003e= 1.13.5`.\n\nUsers who are unable to upgrade Nokogiri may also choose a more complicated mitigation: compile and link Nokogiri against external libraries libxml2 `\u003e= 2.9.14` which will also address these same issues.\n\n\n### Impact\n\n#### libxml2 [CVE-2022-29824](https://nvd.nist.gov/vuln/detail/CVE-2022-29824)\n\n- **CVSS3 score**:\n  - Unspecified upstream\n  - Nokogiri maintainers evaluate at 8.6 (High) ([CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H)). Note that this is different from the CVSS assessed by NVD.\n- **Type**: Denial of service, information disclosure\n- **Description**: In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2's buffer functions, for example libxslt through 1.1.35, is affected as well.\n- **Fixed**: https://gitlab.gnome.org/GNOME/libxml2/-/commit/2554a24\n\nAll versions of libml2 prior to v2.9.14 are affected.\n\nApplications parsing or serializing multi-gigabyte documents (in excess of INT_MAX bytes) may be vulnerable to an integer overflow bug in buffer handling that could lead to exposure of confidential data, modification of unrelated data, or a segmentation fault resulting in a denial-of-service.\n\n\n### References\n\n- [libxml2 v2.9.14 release notes](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.9.14)\n- [CVE-2022-29824](https://nvd.nist.gov/vuln/detail/CVE-2022-29824)\n- [CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer](https://cwe.mitre.org/data/definitions/119.html)\n\n","status":"published","published":"2022-05-18T20:06:48Z","modified":"2026-08-27T04:10:44.339773927Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T15:46:44.927642Z"},{"id":"UBUNTU-CVE-2022-50999","description":"Nokogiri versions before 1.13.5 contain an integer overflow vulnerability in packaged libxml2 buffer handling functions that allows attackers to cause out-of-bounds memory writes. Attackers can exploit this by crafting multi-gigabyte XML files to trigger buffer overflows resulting in information disclosure, data modification, or denial of service.","status":"withdrawn","published":"2026-08-25T16:16:00Z","modified":"2026-09-16T14:01:07.1635257Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"},{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T16:54:18.756095Z"}]}}