{"id":"CVE-2026-111269","published":"2026-10-15T22:19:27.680","lastModified":"2026-10-16T18:25:45.343","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.","cvssScore":6.1,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","cwes":["CWE-125"],"vendors":[],"products":[],"references":[{"url":"https://github.com/libical/libical","tags":[]},{"url":"https://github.com/libical/libical/blob/9cfca65c122fa23b9680a28e0c9225a2fd015fc5/src/libical/icalvalue.c#L1608-L1645","tags":[]},{"url":"https://github.com/libical/libical/commit/d753885ce2de7c105d6b8c405aa7aee1d98ad8de","tags":[]},{"url":"https://github.com/libical/libical/pull/1455","tags":[]},{"url":"https://hackmd.io/@haind-pwn/libical-icalvalue-decode-ical-string-oob-read","tags":[]},{"url":"https://www.vulncheck.com/advisories/libical-through-4.0.6-heap-out-of-bounds-read-via-icalvalue-decode-ical-string","tags":[]}],"exploitRefs":[{"url":"https://github.com/libical/libical","tags":[]},{"url":"https://github.com/libical/libical/blob/9cfca65c122fa23b9680a28e0c9225a2fd015fc5/src/libical/icalvalue.c#L1608-L1645","tags":[]},{"url":"https://github.com/libical/libical/commit/d753885ce2de7c105d6b8c405aa7aee1d98ad8de","tags":[]},{"url":"https://github.com/libical/libical/pull/1455","tags":[]}],"hasPoc":true,"ai":null}