CVE-2026-64677 Anki's local HTTP server is vulnerable to directory traversal attacks
Attackers can read local files via directory traversal in Anki's local HTTP server, exposing sensitive data to malicious scripts or websites.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-64677?
CVE-2026-64677 is a medium-severity path traversal vulnerability in ankitects anki, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Anki is a program for creating and reviewing flashcards. Prior to 25.09.3, endpoints in Anki's local HTTP server do not adequately constrain requested media and built-in data paths, allowing scripts served from shared decks, or malicious websites combined with an origin-check bypass, to read local files through directory traversal. This issue is fixed in version 25.09.3.
Weakness: CWE-22
Which versions are affected by CVE-2026-64677?
How do I fix CVE-2026-64677?
No fix has been published for CVE-2026-64677 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-64677 being exploited?
There is no known exploitation of CVE-2026-64677 in the wild and no public exploit code.
Sources
Also known as GHSA-78wr-2gg2-4hqg, UBUNTU-CVE-2026-64677.