CVE-2026-59153: CWE-346: Origin Validation Error in ankitects anki
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.
AI Analysis
Technical Summary
CVE-2026-59153 is an origin validation error (CWE-346) in ankitects Anki prior to version 25.09.3. Anki launches a local HTTP server to serve media files and web pages for parts of its interface. However, requests from other origins were not adequately blocked, potentially allowing a malicious website to send side-effecting requests to the local server. The impact varies depending on the browser's Private Network Access protections. The issue is resolved in Anki version 25.09.3.
Potential Impact
A malicious website could cause side-effecting requests to Anki's local HTTP server, potentially leading to unintended actions or information disclosure depending on browser security features. The overall severity is low, reflecting limited impact and the requirement for user interaction.
Mitigation Recommendations
Upgrade Anki to version 25.09.3 or later, where this origin validation issue is fixed. No other mitigation guidance is provided. Patch status is confirmed by the vendor stating the fix is in 25.09.3.
CVE-2026-59153: CWE-346: Origin Validation Error in ankitects anki
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.
CVSS v4.0
Score 2.1low
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-59153 is an origin validation error (CWE-346) in ankitects Anki prior to version 25.09.3. Anki launches a local HTTP server to serve media files and web pages for parts of its interface. However, requests from other origins were not adequately blocked, potentially allowing a malicious website to send side-effecting requests to the local server. The impact varies depending on the browser's Private Network Access protections. The issue is resolved in Anki version 25.09.3.
Potential Impact
A malicious website could cause side-effecting requests to Anki's local HTTP server, potentially leading to unintended actions or information disclosure depending on browser security features. The overall severity is low, reflecting limited impact and the requirement for user interaction.
Mitigation Recommendations
Upgrade Anki to version 25.09.3 or later, where this origin validation issue is fixed. No other mitigation guidance is provided. Patch status is confirmed by the vendor stating the fix is in 25.09.3.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-02T16:50:27.886Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4d7350c9d9e3dbe3e36b44
Added to database: 07/07/2026, 21:44:48 UTC
Last enriched: 07/15/2026, 12:14:48 UTC
Last updated: 08/22/2026, 10:52:10 UTC
Views: 84
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