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CVE-2026-111269

CVE-2026-111269 · libical through 4.0.6 Heap Out-of-Bounds Read via icalvalue_decode_ical_string

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.9 · Medium · EPSS 0.1%

Published
Updated

Stack: system

Affected products and versions

  • libical

    Versions
    • ≥ 0, ≤ 4.0.6: Affected (semver)

    No fix published

  • libical3 Debian:12

    Versions
    • 3.0.16-1
    • 3.0.17-1
    • 3.0.17-1.1
    • 3.0.17-1.1~exp1
    • 3.0.18-1
    • 3.0.19-1
    • 3.0.19-2
    • 3.0.19-3
    • 3.0.19-4
    • 3.0.20-1
    • 3.0.20-2
    • 3.0.20-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libical3 Debian:13

    Versions
    • 3.0.20-1
    • 3.0.20-2
    • 3.0.20-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libical3 Debian:14

    Versions
    • 3.0.20-1
    • 3.0.20-2
    • 3.0.20-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libical Ubuntu:16.04:LTS

    Versions
    • 1.0.1-0ubuntu1
    • 1.0.1-0ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libical Ubuntu:18.04:LTS

    Versions
    • 2.0.0-0.5
    • 2.0.0-0.5build1
    • 2.0.0-1ubuntu1
    • 2.0.0-4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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