{"id":"CVE-2026-110684","aliases":[],"cve":{"records":[{"id":"CVE-2026-110684","source":"CPANSec","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-14T13:26:26.768Z","published":"2026-10-19T18:12:13.737Z","modified":"2026-10-29T17:01:30.913Z"}],"publishers":[{"name":"CPANSec","role":"CNA","organizationId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","modified":"2026-10-19T18:12:13.737Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-29T17:01:30.913Z"}],"references":[{"url":"https://github.com/rurban/Cpanel-JSON-XS/commit/5b15916b5e7841e447664ace51fb50c12d1e0f39.patch","tags":["patch"],"source":"CPANSec"},{"url":"https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.80/changes","tags":["release-notes"],"source":"CPANSec"}],"weaknesses":[{"id":"CWE-401","description":"CWE-401 Missing Release of Memory after Effective Lifetime","source":"CPANSec"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-29T17:01:07.556763Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Cpanel::JSON::XS versions from 3.0202 before 4.80 for Perl leak memory and retain overloaded objects when encoding values as strings in encode_stringify","titleSource":"CPANSec","descriptionSource":"CPANSec","description":"Cpanel::JSON::XS versions from 3.0202 before 4.80 for Perl leak memory and retain overloaded objects when encoding values as strings in encode_stringify.\n\nencode_stringify writes a value in its string form under allow_stringify, under convert_blessed for objects without TO_JSON, and under allow_bignum. For an array or hash object with a \"\" overload, and from 4.20 a scalar object, it takes an extra reference that is never released, so the object and everything it references are never freed. From 4.10 it also never frees its copy of the string.\n\nRepeatedly encoding data that contains such values grows process memory without bound.","score":8.1,"severity":"high","published":"2026-10-19T18:12:13.737Z","modified":"2026-10-29T17:01:30.913Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"","name":"Cpanel-JSON-XS","platforms":[],"versions":[{"version":"3.0202","status":"affected","lessThan":"4.80","versionType":"custom"}],"defaultStatus":"unaffected","packageURL":"pkg:cpan/Cpanel-JSON-XS","cpes":[],"source":"CPANSec","url":"https://www.cve.org/CVERecord?id=CVE-2026-110684"}],"remediation":[{"text":"Upgrade to Cpanel-JSON-XS 4.80 or later.","source":"CPANSec","url":"https://www.cve.org/CVERecord?id=CVE-2026-110684"}],"references":["https://github.com/rurban/Cpanel-JSON-XS/commit/5b15916b5e7841e447664ace51fb50c12d1e0f39.patch","https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.80/changes"],"sources":[{"name":"CVE","id":"CVE-2026-110684","modified":"2026-10-29T17:01:30.913Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-110684"}],"assessments":[{"source":"CISA-ADP","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","score":8.1}],"sourceAffected":[],"observedAt":"2026-10-29T17:26:56.887Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T14:00:31.626Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-30T09:30:38.744Z","attemptedAt":"2026-10-30T09:30:38.744Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-30T09:30:38.007Z","attemptedAt":"2026-10-30T09:30:38.007Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-30T09:30:39.103Z","attemptedAt":"2026-10-30T09:30:39.103Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-30T09:30:41.124Z","attemptedAt":"2026-10-30T09:30:41.124Z"}],"evidence":[{"source":"GitHub Advisory Database","id":"GHSA-pjjg-2ww8-r6xm","url":"https://github.com/advisories/GHSA-pjjg-2ww8-r6xm","modified":"2026-10-29T18:30:39Z","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","checkedAt":"2026-10-30T09:30:38.007Z"},{"source":"NVD","id":"CVE-2026-110684","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110684","modified":"2026-10-29T17:18:00.567","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","checkedAt":"2026-10-30T09:30:38.744Z"},{"source":"ENISA EUVD","id":"EUVD-2026-104563","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-104563","modified":"Oct 29, 2026, 5:01:30 PM","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","checkedAt":"2026-10-30T09:30:39.103Z"},{"source":"FIRST EPSS","id":"CVE-2026-110684","url":"https://www.first.org/epss/","probability":0.00171,"percentile":0.06495,"date":"2026-10-29","checkedAt":"2026-10-30T09:30:41.124Z"}],"aiSummary":{"text":"Cpanel::JSON::XS versions from 3.0202 before 4.80 for Perl leak memory and retain overloaded objects when encoding values as strings. The weakness is due to missing release of memory after effective lifetime. Repeated encoding grows process memory without bound.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:55:34.408Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-110684"}]}}