CVE-2026-59153

Anki's local HTTP server does not sufficiently validate requests

Published Jul 7, 2026 CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-869j-r97x-hx2g Anki's local HTTP server does not sufficiently validate requests
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ankitects
Ankitects anki
Vendors & Products Ankitects
Ankitects anki
Type Values Removed Values Added
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.
Title Anki's local HTTP server does not sufficiently validate requests
Weaknesses CWE-346
References
Metrics cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 8, 2026, 1:50 PM
Reserved
Jul 2, 2026, 4:50 PM
Status
Deferred
Published
Jul 7, 2026, 10:16 PM
Modified
Oct 25, 2026, 8:10 PM