CVE-2026-59153: CWE-346: Origin Validation Error in ankitects anki
Anki versions prior to 25.09.3 run a local HTTP server to serve media and web pages for its interface. These versions do not sufficiently block requests from other origins, allowing a malicious website to potentially trigger side-effecting requests to the local server. The severity of this issue varies depending on browser protections related to Private Network Access. This vulnerability is addressed in Anki version 25.09.3.
AI Analysis
Technical Summary
CVE-2026-59153 is an origin validation error (CWE-346) in Anki, a flashcard application. Before version 25.09.3, Anki launches a local HTTP server to serve media files and web pages for parts of its interface but fails to adequately block cross-origin requests. This flaw could allow a malicious website to induce side-effecting requests to the local server. The impact depends on browser-specific Private Network Access protections. The vulnerability is fixed in version 25.09.3.
Potential Impact
The vulnerability allows a remote malicious website to send unauthorized requests to Anki's local HTTP server, potentially causing unintended side effects. The actual impact varies by browser due to differing Private Network Access protections. The CVSS 4.0 score is low (2.1), indicating limited severity and exploitability.
Mitigation Recommendations
Upgrade Anki to version 25.09.3 or later, where this origin validation issue is fixed. No other mitigation is indicated or necessary as the fix addresses the root cause.
CVE-2026-59153: CWE-346: Origin Validation Error in ankitects anki
Description
Anki versions prior to 25.09.3 run a local HTTP server to serve media and web pages for its interface. These versions do not sufficiently block requests from other origins, allowing a malicious website to potentially trigger side-effecting requests to the local server. The severity of this issue varies depending on browser protections related to Private Network Access. This vulnerability is addressed in Anki 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 Anki, a flashcard application. Before version 25.09.3, Anki launches a local HTTP server to serve media files and web pages for parts of its interface but fails to adequately block cross-origin requests. This flaw could allow a malicious website to induce side-effecting requests to the local server. The impact depends on browser-specific Private Network Access protections. The vulnerability is fixed in version 25.09.3.
Potential Impact
The vulnerability allows a remote malicious website to send unauthorized requests to Anki's local HTTP server, potentially causing unintended side effects. The actual impact varies by browser due to differing Private Network Access protections. The CVSS 4.0 score is low (2.1), indicating limited severity and exploitability.
Mitigation Recommendations
Upgrade Anki to version 25.09.3 or later, where this origin validation issue is fixed. No other mitigation is indicated or necessary as the fix addresses the root cause.
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: 07/07/2026, 21:58:32 UTC
Last updated: 07/07/2026, 22:30:07 UTC
Views: 4
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