{"cve":"CVE-2026-110680","nvd":{"published":"2026-10-19T19:17:21.657","modified":"2026-10-19T20:50:17.967","status":"Awaiting Analysis","description":"Cpanel::JSON::XS versions from 4.20 before 4.80 for Perl write out of bounds when a tied or shared hash grows during canonical encoding in encode_hv.\n\nWith canonical, the keys of a tied or threads::shared hash are counted before a second pass collects them for sorting. The encoder uses a fixed 64-entry stack array or, for larger counts, a heap array sized from the first pass. If the second pass exceeds that capacity, entries are written out of bounds before the counts are compared.\n\nThis corrupts stack or heap memory and can crash the process.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-787"],"references":["https://github.com/rurban/Cpanel-JSON-XS/commit/44c4591cc62ea7f453a0ed931abf24394e1560a1.patch","https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.80/changes"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:56:58.798400159+00:00"},"epss":{"cve":"CVE-2026-110680","score":0.00171,"percentile":0.06464,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}