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CVE-2026-58266

CVE-2026-58266 · Anki: User scripts in iframes have access to the internal Anki API

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

Anki is a program for creating and reviewing flashcards. Prior to 25.09.4, Anki's webview-based pages communicate with the Rust backend using an internal localhost API, and user scripts included via iframes in the editor can access this API despite protections intended to block reviewer and editor scripts. A malicious imported card package with an embedded iframe can use exposed API methods such as getImageForOcclusion to read arbitrary files accessible to the Anki process and exfiltrate them over the network. This issue is fixed in version 25.09.4.

CVSS 6.5 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • anki

    Versions
    • < 25.09.4: Affected

    No fix published

  • aqt PyPI

    Versions
    • 2.1.24
    • 2.1.25
    • 2.1.26
    • 2.1.28
    • 2.1.29
    • 2.1.30
    • 2.1.31
    • 2.1.32
    • 2.1.33
    • 2.1.34
    • 2.1.35
    • 2.1.36
    • 2.1.37
    • 2.1.37rc1
    • 2.1.38
    • 2.1.38b1
    • 2.1.38b2
    • 2.1.38b3
    • 2.1.38b4
    • 2.1.39
    • 2.1.39b1
    • 2.1.39b2
    • 2.1.40
    • 2.1.41
    • 2.1.41b1
    • 2.1.41b2
    • 2.1.41b3
    • 2.1.41b4
    • 2.1.41b5
    • 2.1.41b6
    • 2.1.41b7
    • 2.1.42
    • 2.1.43
    • 2.1.43b1
    • 2.1.44
    • 2.1.44b1
    • 2.1.45
    • 2.1.45a1
    • 2.1.45a2
    • 2.1.45a3
    • 2.1.45a4
    • 2.1.45b1
    • 2.1.45b2
    • 2.1.45b3
    • 2.1.45b4
    • 2.1.45b5
    • 2.1.45b6
    • 2.1.45rc1
    • 2.1.45rc2
    • 2.1.46
    • 2.1.46rc1
    • 2.1.47
    • 2.1.47rc1
    • 2.1.47rc2
    • 2.1.48
    • 2.1.48rc1
    • 2.1.48rc2
    • 2.1.49
    • 2.1.50
    • 2.1.50b1
    • 2.1.50b2
    • 2.1.50b3
    • 2.1.50b4
    • 2.1.50b5
    • 2.1.50b6
    • 2.1.50b7
    • 2.1.50b8
    • 2.1.50b9
    • 2.1.50rc1
    • 2.1.50rc2
    • 2.1.50rc3
    • 2.1.50rc4
    • 2.1.51
    • 2.1.51rc1
    • 2.1.51rc2
    • 2.1.52
    • 2.1.52rc1
    • 2.1.52rc2
    • 2.1.52rc3
    • 2.1.53
    • 2.1.53rc1
    • 2.1.53rc2
    • 2.1.54
    • 2.1.54rc1
    • 2.1.54rc2
    • 2.1.54rc3
    • 2.1.55
    • 2.1.55b1
    • 2.1.55b2
    • 2.1.55b3
    • 2.1.55b4
    • 2.1.55b6
    • 2.1.55b7
    • 2.1.55rc1
    • 2.1.55rc2
    • 2.1.56
    • 2.1.56rc1
    • 2.1.57
    • 2.1.57b1
    • 2.1.57rc1
    • 2.1.58
    • 2.1.59
    • 2.1.60
    • 2.1.61
    • 2.1.61b1
    • 2.1.61b2
    • 2.1.62
    • 2.1.62b1
    • 2.1.62rc1
    • 2.1.63
    • 2.1.64
    • 2.1.65
    • 2.1.66
    • 2.1.66b1
    • 2.1.66rc1
    • 23.10
    • 23.10.1
    • 23.10.1rc1
    • 23.10.1rc2
    • 23.10b1
    • 23.10b2
    • 23.10b3
    • 23.10b4
    • 23.10b5
    • 23.10b6
    • 23.10rc1
    • 23.10rc2
    • 23.10rc3
    • 23.12
    • 23.12.1
    • 23.12b1
    • 23.12b2
    • 23.12b3
    • 23.12rc1
    • 24.10b1
    • 24.10b2
    • 24.10b3
    • 24.10b4
    • 24.10rc1
    • 24.10rc2
    • 24.11
    • 24.11rc1
    • 24.11rc2
    • 24.4
    • 24.4.1
    • 24.4rc1
    • 24.4rc2
    • 24.6
    • 24.6.1
    • 24.6.2
    • 24.6.3
    • 25.1b1
    • 25.1rc1
    • 25.2
    • 25.2.1
    • 25.2.2
    • 25.2.3
    • 25.2.4
    • 25.2.5
    • 25.2.6
    • 25.2.7
    • 25.2rc1
    • 25.5b1
    • 25.5b2
    • 25.6b1
    • 25.6b2
    • 25.6b3
    • 25.6b4
    • 25.6b5
    • 25.6b6
    • 25.6b7
    • 25.7
    • 25.7.1
    • 25.7.2
    • 25.7.3
    • 25.7.3rc1
    • 25.7.4
    • 25.7.5
    • 25.8b1
    • 25.8b2
    • 25.8b3
    • 25.8b4
    • 25.8b5
    • 25.9
    • 25.9.1
    • 25.9.2
    • 25.9.3
    • 25.9rc1
    Affected ranges
    • ECOSYSTEM: < 25.9.4

    Update to 25.9.4

  • anki Ubuntu:16.04:LTS

    Versions
    • 2.0.32+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • anki Ubuntu:18.04:LTS

    Versions
    • 2.1.0+dfsg~a12-0.1
    • 2.1.0+dfsg~b24-1
    • 2.1.0+dfsg~b25-1
    • 2.1.0+dfsg~b26-1
    • 2.1.0+dfsg~b27-1
    • 2.1.0+dfsg~b29-1
    • 2.1.0+dfsg~b31-1
    • 2.1.0+dfsg~b33-1
    • 2.1.0+dfsg~b34-1
    • 2.1.0+dfsg~b35-1
    • 2.1.0+dfsg~b36-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • anki Ubuntu:20.04:LTS

    Versions
    • 2.1.8+dfsg-1ubuntu1
    • 2.1.15+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • anki Ubuntu:22.04:LTS

    Versions
    • 2.1.15+dfsg-3
    • 2.1.15+dfsg-3ubuntu0.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • anki Ubuntu:24.04:LTS

    Versions
    • 2.1.15+dfsg-3ubuntu1
    • 2.1.15+dfsg-3ubuntu2
    • 2.1.15+dfsg-3ubuntu3
    • 2.1.15+dfsg-3ubuntu4
    • 2.1.15+dfsg-3ubuntu4.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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