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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
Active
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/ankitects/anki/commit/858e5689d0e4fd24f74856c7e8f245412694a2…
security-advisories@github.com
https://github.com/ankitects/anki/releases/tag/25.09.3
security-advisories@github.com
https://github.com/ankitects/anki/security/advisories/GHSA-869j-r97x-hx2g
security-advisories@github.com
https://x.com/taviso/status/2051310678800253318
security-advisories@github.com