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Low · 2.1 CVE-2026-59153 EUVD-2026-42112GHSA-869j-r97x-hx2gPYSEC-2026-3459

Anki's local HTTP server does not sufficiently validate requests

Published Jul 7, 2026 · Updated Jul 8, 2026 · Assigned by GitHub_M

Description

Anki is a program for creating and reviewing flashcards. Prior to 25.09.3, Anki launches a local HTTP server to serve media files and web pages for parts of its interface, but requests from other origins were not sufficiently blocked. A malicious website could potentially trigger side-effecting requests to the local server, with severity varying by browser depending on Private Network Access protections. This issue is fixed in version 25.09.3.

Affected products

VendorProductAffectedFixed
ankitects anki < 25.09.3 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS anki No fix yet —
Ubuntu 22.04 LTS anki No fix yet —
Ubuntu 20.04 LTS anki No fix yet —
Ubuntu 18.04 LTS anki No fix yet —
Ubuntu 16.04 LTS anki No fix yet —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI aqt < 25.9.3 25.9.3 GHSA-869j-r97x-hx2g

References