{"id":"CVE-2026-111269","revision":"2178b549f4a24f9dbc873a7f87cee651","records":[{"revision":"2178b549f4a24f9dbc873a7f87cee651","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-111269","aliases":[],"title":"libical through 4.0.6 Heap Out-of-Bounds Read via icalvalue_decode_ical_string","description":"libical through 4.0.6 contains a heap-based out-of-bounds read in icalvalue_decode_ical_string() in src/libical/icalvalue.c when decoding input ending in a backslash. Attackers can supply escaped iCalendar text with a trailing backslash, causing the loop to read past the terminator and crash the application or leak adjacent heap memory.","state":0,"publishedAt":"2026-10-15T21:43:16.966+00:00","modifiedAt":"2026-10-15T21:43:16.966+00:00","affected":[{"ecosystem":"Vendor product","name":"libical","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"libical\",\n                    \"product\": \"libical\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"4.0.6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:github/libical/libical\",\n                    \"repo\": \"https://github.com/libical/libical\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","score":6.1,"severity":"MEDIUM"}],"references":["https://hackmd.io/@haind-pwn/libical-icalvalue-decode-ical-string-oob-read","https://github.com/libical/libical/pull/1455","https://github.com/libical/libical/commit/d753885ce2de7c105d6b8c405aa7aee1d98ad8de","https://github.com/libical/libical/blob/9cfca65c122fa23b9680a28e0c9225a2fd015fc5/src/libical/icalvalue.c#L1608-L1645","https://github.com/libical/libical","https://www.vulncheck.com/advisories/libical-through-4.0.6-heap-out-of-bounds-read-via-icalvalue-decode-ical-string"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111269","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111269","identifiers":["CVE-2026-111269"]},"retained":false,"historicalAffected":[]}],"coverage":[]}