DEBIAN-CVE-2026-110777

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Source
https://security-tracker.debian.org/tracker/CVE-2026-110777
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-110777.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-110777
Upstream
Published
2026-10-14T18:17:36Z
Modified
2026-10-16T09:47:24Z
Severity
  • 5.7 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

A flaw was found in evolution-data-server. Calendar events containing a file:// URI in their ATTACH property automatically read the targeted local file, base64-encode its contents and upload it back to the server when the event is saved. There are no file path restrictions or checks to verify whether the attachment originally came from the server or was added locally. This allows an attacker with access to a shared CalDAV calendar to exfiltrate arbitrary files the user has access to when interacting with malicious calendar events.

References

Affected packages

Debian:12 / evolution-data-server

Package

Name
evolution-data-server
Purl
pkg:deb/debian/evolution-data-server?arch=source&distro=bookworm

Affected ranges

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

Affected versions

3.*
3.46.4-2
3.46.4-2+deb12u1
3.47.2-1
3.47.3-1
3.47.3-2
3.48.0-1
3.48.1-1
3.48.2-1
3.48.3-1
3.48.4-1
3.49.2-1
3.49.2-2
3.49.2-3
3.49.2-4
3.49.3-1
3.50.0-1
3.50.1-1
3.50.2-1
3.50.3-1
3.50.3-1.1~exp1
3.50.3-2
3.50.3-2.1
3.50.3-2.2
3.51.2-1
3.52.0-1
3.52.1-1
3.52.1-2
3.52.2-1
3.52.3-1
3.52.4-1
3.53.2-1
3.53.3-1
3.54.0-1
3.54.1-1
3.54.2-1
3.54.3-1
3.55.1-1
3.55.2-1
3.55.3-1
3.56.0-1
3.56.1-1
3.56.1-2
3.56.2-1
3.56.2-2
3.56.2-3
3.56.2-4
3.56.2-5
3.56.2-6
3.56.2-7
3.56.2-8
3.56.2-9
3.62.0-1
3.62.1-1
3.62.1-2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-110777.json"

Debian:13 / evolution-data-server

Package

Name
evolution-data-server
Purl
pkg:deb/debian/evolution-data-server?arch=source&distro=trixie

Affected ranges

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

Affected versions

3.*
3.56.1-2
3.56.2-0+deb13u1
3.56.2-1
3.56.2-2
3.56.2-3
3.56.2-4
3.56.2-5
3.56.2-6
3.56.2-7
3.56.2-8
3.56.2-9
3.62.0-1
3.62.1-1
3.62.1-2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-110777.json"

Debian:14 / evolution-data-server

Package

Name
evolution-data-server
Purl
pkg:deb/debian/evolution-data-server?arch=source&distro=forky

Affected ranges

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

Affected versions

3.*
3.56.1-2
3.56.2-1
3.56.2-2
3.56.2-3
3.56.2-4
3.56.2-5
3.56.2-6
3.56.2-7
3.56.2-8
3.56.2-9
3.62.0-1
3.62.1-1
3.62.1-2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-110777.json"