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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitHub_MCNA
2.1 LOW
NETWORK
LOW
NONE
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
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
ankitectsanki
𝑥
< 25.9.3
CNA
Common Weakness Enumeration
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