CVE-2026-110687

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-110687", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-10-14T13:27:15.271Z", "datePublished": "2026-10-19T18:12:22.028Z", "dateUpdated": "2026-10-29T17:15:37.701Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["Cpanel::JSON::XS"], "packageName": "Cpanel-JSON-XS", "packageURL": "pkg:cpan/Cpanel-JSON-XS", "programFiles": ["XS.xs"], "programRoutines": [{"name": "utf16_cmp"}], "repo": "https://github.com/rurban/Cpanel-JSON-XS", "versions": [{"lessThan": "4.80", "status": "affected", "version": "4.43", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Cpanel::JSON::XS versions from 4.43 before 4.80 for Perl misorder byte-string keys during canonical encoding in utf16_cmp.\n\ncanonical sorts keys by UTF-16 code units. When any key in a hash is UTF-8 flagged, every key is decoded as UTF-8 for the comparison, including byte-string keys that the encoder writes out as Latin-1 characters. A byte-string key whose bytes are valid UTF-8 is sorted out of order, and two keys that encode differently can compare equal and are left in hash order.\n\nThe same data can encode to different canonical documents across processes."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-176", "description": "CWE-176 Improper Handling of Unicode Encoding", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-10-19T18:12:22.028Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/rurban/Cpanel-JSON-XS/commit/bb9da30b67f637f4d57922f0e043376363f28f0c.patch"}, {"tags": ["release-notes"], "url": "https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.80/changes"}], "solutions": [{"lang": "en", "value": "Upgrade to Cpanel-JSON-XS 4.80 or later."}], "source": {"discovery": "UNKNOWN"}, "timeline": [{"lang": "en", "time": "2026-10-14T00:00:00.000Z", "value": "Version 4.80 released with fix."}], "title": "Cpanel::JSON::XS versions from 4.43 before 4.80 for Perl misorder byte-string keys during canonical encoding in utf16_cmp", "x_generator": {"engine": "cpansec-cna-tool 0.1"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-10-29T17:15:03.635936Z", "id": "CVE-2026-110687", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-29T17:15:37.701Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-110687", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-29T17:15:03.635936Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-29T17:14:53.182Z"}}], "cna": {"title": "Cpanel::JSON::XS versions from 4.43 before 4.80 for Perl misorder byte-string keys during canonical encoding in utf16_cmp", "source": {"discovery": "UNKNOWN"}, "affected": [{"repo": "https://github.com/rurban/Cpanel-JSON-XS", "modules": ["Cpanel::JSON::XS"], "versions": [{"status": "affected", "version": "4.43", "lessThan": "4.80", "versionType": "custom"}], "packageURL": "pkg:cpan/Cpanel-JSON-XS", "packageName": "Cpanel-JSON-XS", "programFiles": ["XS.xs"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "programRoutines": [{"name": "utf16_cmp"}]}], "timeline": [{"lang": "en", "time": "2026-10-14T00:00:00.000Z", "value": "Version 4.80 released with fix."}], "solutions": [{"lang": "en", "value": "Upgrade to Cpanel-JSON-XS 4.80 or later."}], "references": [{"url": "https://github.com/rurban/Cpanel-JSON-XS/commit/bb9da30b67f637f4d57922f0e043376363f28f0c.patch", "tags": ["patch"]}, {"url": "https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.80/changes", "tags": ["release-notes"]}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}, "descriptions": [{"lang": "en", "value": "Cpanel::JSON::XS versions from 4.43 before 4.80 for Perl misorder byte-string keys during canonical encoding in utf16_cmp.\n\ncanonical sorts keys by UTF-16 code units. When any key in a hash is UTF-8 flagged, every key is decoded as UTF-8 for the comparison, including byte-string keys that the encoder writes out as Latin-1 characters. A byte-string key whose bytes are valid UTF-8 is sorted out of order, and two keys that encode differently can compare equal and are left in hash order.\n\nThe same data can encode to different canonical documents across processes."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-176", "description": "CWE-176 Improper Handling of Unicode Encoding"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-10-19T18:12:22.028Z"}}}, "cveMetadata": {"cveId": "CVE-2026-110687", "state": "PUBLISHED", "dateUpdated": "2026-10-29T17:15:37.701Z", "dateReserved": "2026-10-14T13:27:15.271Z", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "datePublished": "2026-10-19T18:12:22.028Z", "assignerShortName": "CPANSec"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["Cpanel::JSON::XS"], "packageName": "Cpanel-JSON-XS", "packageURL": "pkg:cpan/Cpanel-JSON-XS", "programFiles": ["XS.xs"], "programRoutines": [{"name": "utf16_cmp"}], "repo": "https://github.com/rurban/Cpanel-JSON-XS", "versions": [{"lessThan": "4.80", "status": "affected", "version": "4.43", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Cpanel::JSON::XS versions from 4.43 before 4.80 for Perl misorder byte-string keys during canonical encoding in utf16_cmp.\n\ncanonical sorts keys by UTF-16 code units. When any key in a hash is UTF-8 flagged, every key is decoded as UTF-8 for the comparison, including byte-string keys that the encoder writes out as Latin-1 characters. A byte-string key whose bytes are valid UTF-8 is sorted out of order, and two keys that encode differently can compare equal and are left in hash order.\n\nThe same data can encode to different canonical documents across processes."}], "id": "CVE-2026-110687", "lastModified": "2026-10-29T18:17:22.573", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-110687", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-29T17:15:03.635936Z", "version": "2.0.3"}}]}, "published": "2026-10-19T19:17:22.307", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/rurban/Cpanel-JSON-XS/commit/bb9da30b67f637f4d57922f0e043376363f28f0c.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.80/changes"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-176"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.43,4.80)"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "cpanel::json::xs", "vendor": "rurban"}], "created": "2026-10-19T19:30:02.965888+00:00", "updated": "2026-10-29T22:30:13.631565+00:00", "vendors": ["rurban", "rurban$PRODUCT$cpanel::json::xs"]}