CVE-2026-59153

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.

Weakness Type (CWE)

CWE-346 CWE-346

References

Other References

https://github.com/ankitects/anki/commit/858e5689d0e4fd24f74856c7e8f245412694a219 https://github.com/ankitects/anki/releases/tag/25.09.3 https://github.com/ankitects/anki/security/advisories/GHSA-869j-r97x-hx2g https://x.com/taviso/status/2051310678800253318

Frequently Asked Questions

What is CVE-2026-59153? +

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.

How do I check if I'm vulnerable to CVE-2026-59153? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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