PT-2026-56266 · Ankitects · Anki

Bankde · Published 2026-07-07 · Updated 2026-07-07 · CVE-2026-58266

NVD

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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.

Fix

Origin Validation Error

Weakness Enumeration

CWE-346

Related Identifiers

CVE-2026-58266

Affected Products

Anki

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-58266 · Security Note
• https://github.com/ankitects/anki/commit/b2b68d829e853da51b5de8aad6c13b53e90bc20d · Note
• https://github.com/ankitects/anki/releases/tag/25.09.4 · Note
• https://github.com/ankitects/anki/security/advisories/GHSA-cw6h-ffmh-x6vh · Note