UBUNTU-CVE-2026-111269

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Source
https://ubuntu.com/security/CVE-2026-111269
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111269.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-111269
Upstream
Published
2026-10-16T00:00:00Z
Modified
2026-10-17T12:58:03Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H CVSS Calculator
  • 6.9 (Medium) CVSS_V4 - 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 CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:16.04:LTS / libical

Package

Name
libical
Purl
pkg:deb/ubuntu/libical?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.0.1-0ubuntu1
1.0.1-0ubuntu2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libical1a",
            "binary_version":  "1.0.1-0ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111269.json"

Ubuntu:18.04:LTS / libical

Package

Name
libical
Purl
pkg:deb/ubuntu/libical?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.0.0-0.5
2.0.0-0.5build1
2.0.0-1ubuntu1
2.0.0-4

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libical2",
            "binary_version":  "2.0.0-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111269.json"