CVE-2026-111269
MEDIUM
CVSS 6.1
Published: 2026-10-15
Modified: 2026-10-16
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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.
Quick Facts
| CVE ID | CVE-2026-111269 |
| CVSS Score | 6.1 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H |
| Published | 2026-10-15 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://github.com/libical/libical
- https://github.com/libical/libical/blob/9cfca65c122fa23b9680…
- https://github.com/libical/libical/commit/d753885ce2de7c105d…
- https://github.com/libical/libical/pull/1455
- https://hackmd.io/@haind-pwn/libical-icalvalue-decode-ical-s…
- https://www.vulncheck.com/advisories/libical-through-4.0.6-h…