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Advisory record · GHSA-cw6h-ffmh-x6vh

Anki: User scripts in iframes have access to the internal Anki API

CVSS 6.5 MediumEPSS 0.0022 · 12th percentile

Published by the GitHub Advisory Database at 19 Jun 2026, 22:10 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
aqtPyPI<25.9.425.9.4
Identifiers
GHSA-cw6h-ffmh-x6vh · CVE-2026-58266
Weakness (CWE)
CWE-22 · CWE-346
Tags
Published
19 Jun 2026
Updated
8 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Anki's aqt package before 25.9.4 lets user scripts inside iframes in the editor reach the internal Anki API, and some API methods can read arbitrary files the Anki process can access. An attacker needs a user to import an untrusted .apkg file and view a card with an embedded iframe, after which the attacker can read files and send their contents over the network. Upgrade aqt to 25.9.4, which contains the fix.

Written 6 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0022, the 12th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:05 UTC First seen by agentprime
  2. 31 Oct 2026, 15:05 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.