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CVE-2026-110777

CVE-2026-110777 · Evolution-data-server: local file disclosure via attach file:// uris

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

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.

CVSS 5.7 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • evolution-data-server

    Versions
    • ≥ 3.26, < 3.62.1: Affected (semver)

    Update to 3.62.1

  • red hat enterprise linux 10

    No fix published

  • red hat enterprise linux 6

    No fix published

  • red hat enterprise linux 7

    No fix published

  • red hat enterprise linux 8

    No fix published

  • red hat enterprise linux 9

    No fix published

  • evolution-data-server Debian:12

    Versions
    • 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
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • evolution-data-server Debian:13

    Versions
    • 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
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • evolution-data-server Debian:14

    Versions
    • 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
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • evolution-data-server Ubuntu:16.04:LTS

    Versions
    • 3.16.5-1ubuntu3
    • 3.18.1-1ubuntu1
    • 3.18.2-0ubuntu1
    • 3.18.2-0ubuntu2
    • 3.18.3-1ubuntu1
    • 3.18.3-1ubuntu2
    • 3.18.4-0ubuntu1
    • 3.18.5-1ubuntu1
    • 3.18.5-1ubuntu1.1
    • 3.18.5-1ubuntu1.2
    • 3.18.5-1ubuntu1.3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • evolution-data-server Ubuntu:Pro:18.04:LTS

    Versions
    • 3.26.1-1ubuntu1
    • 3.26.2-1ubuntu1
    • 3.26.2.1-1ubuntu1
    • 3.26.2.1-1ubuntu3
    • 3.26.3-1ubuntu1
    • 3.26.5-1ubuntu3
    • 3.27.90-1ubuntu1
    • 3.28.0-1ubuntu1
    • 3.28.0-2ubuntu1
    • 3.28.0-2ubuntu2
    • 3.28.1-1ubuntu1
    • 3.28.3-0ubuntu0.18.04.1
    • 3.28.5-0ubuntu0.18.04.1
    • 3.28.5-0ubuntu0.18.04.2
    • 3.28.5-0ubuntu0.18.04.3
    • 3.28.5-0ubuntu0.18.04.3+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • evolution-data-server Ubuntu:Pro:20.04:LTS

    Versions
    • 3.34.1-1
    • 3.34.1-1build1
    • 3.34.1-1ubuntu1
    • 3.34.1-2
    • 3.34.3-2
    • 3.35.91-1
    • 3.35.92-1
    • 3.36.0-1
    • 3.36.1-1
    • 3.36.1-2
    • 3.36.2-0ubuntu1
    • 3.36.3-0ubuntu1
    • 3.36.3-0ubuntu1.1
    • 3.36.4-0ubuntu1
    • 3.36.5-0ubuntu1
    • 3.36.5-0ubuntu1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • evolution-data-server Ubuntu:22.04:LTS

    Versions
    • 3.40.4-1
    • 3.42.0-2
    • 3.42.1-1
    • 3.42.2-1
    • 3.42.3-1
    • 3.42.4-1
    • 3.43.3-1
    • 3.44.0-2
    • 3.44.1-0ubuntu2
    • 3.44.2-0ubuntu1
    • 3.44.4-0ubuntu1
    • 3.44.4-0ubuntu1.1
    • 3.44.4-0ubuntu1.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • evolution-data-server Ubuntu:24.04:LTS

    Versions
    • 3.50.0-1
    • 3.50.1-1
    • 3.50.2-1
    • 3.50.2-1build1
    • 3.50.3-1
    • 3.52.0-1build1
    • 3.52.0-1build2
    • 3.52.0-1build3
    • 3.52.3-0ubuntu1
    • 3.52.3-0ubuntu1.1
    • 3.52.3-0ubuntu1.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • evolution-data-server Ubuntu:26.10

    Versions
    • 3.56.2-8
    • 3.56.2-9
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • evolution-data-server Ubuntu:26.04:LTS

    Versions
    • 3.56.2-3
    • 3.56.2-4
    • 3.56.2-4build1
    • 3.56.2-5
    • 3.56.2-6
    • 3.56.2-7
    • 3.56.2-8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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