PYSEC-2026-3459

See a problem?
Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/aqt/PYSEC-2026-3459.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-3459
Aliases
Published
2026-07-23T11:41:44.710117Z
Modified
2026-07-23T15:00:10.895986265Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Anki's local HTTP server does not sufficiently validate requests
Details

Summary

Anki launches a local HTTP server to serve media files and web pages for parts of its interface. While the server has a CORS setup, requests from other origins were not blocked, allowing malicious websites to potentially trigger side-effecting requests.

Browser impact

The severity varies by browser because of Private Network Access (PNA), a newer spec that restricts web pages from making requests to localhost/local network addresses:

Chrome/Chromium (including Edge, Brave): Largely protected, as Chrome has implemented PNA restrictions for several years and now puts local network access behind a permission prompt. Safari: Hasn't implemented PNA yet, though macOS has some OS-level protections. Firefox: Most vulnerable — hasn't implemented PNA yet, though it's reportedly planned for Firefox 151.

Patches

The issue was fixed as of Anki 25.09.3

References

https://x.com/taviso/status/2051310678800253318

References

Affected packages

PyPI / aqt

Package

Name
aqt
View open source insights on deps.dev
Purl
pkg:pypi/aqt

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
25.9.3

Affected versions

2.*
2.1.24
2.1.25
2.1.26
2.1.28
2.1.29
2.1.30
2.1.31
2.1.32
2.1.33
2.1.34
2.1.35
2.1.36
2.1.37rc1
2.1.37
2.1.38b1
2.1.38b2
2.1.38b3
2.1.38b4
2.1.38
2.1.39b1
2.1.39b2
2.1.39
2.1.40
2.1.41b1
2.1.41b2
2.1.41b3
2.1.41b4
2.1.41b5
2.1.41b6
2.1.41b7
2.1.41
2.1.42
2.1.43b1
2.1.43
2.1.44b1
2.1.44
2.1.45a1
2.1.45a2
2.1.45a3
2.1.45a4
2.1.45b1
2.1.45b2
2.1.45b3
2.1.45b4
2.1.45b5
2.1.45b6
2.1.45rc1
2.1.45rc2
2.1.45
2.1.46rc1
2.1.46
2.1.47rc1
2.1.47rc2
2.1.47
2.1.48rc1
2.1.48rc2
2.1.48
2.1.49
2.1.50b1
2.1.50b2
2.1.50b3
2.1.50b4
2.1.50b5
2.1.50b6
2.1.50b7
2.1.50b8
2.1.50b9
2.1.50rc1
2.1.50rc2
2.1.50rc3
2.1.50rc4
2.1.50
2.1.51rc1
2.1.51rc2
2.1.51
2.1.52rc1
2.1.52rc2
2.1.52rc3
2.1.52
2.1.53rc1
2.1.53rc2
2.1.53
2.1.54rc1
2.1.54rc2
2.1.54rc3
2.1.54
2.1.55b1
2.1.55b2
2.1.55b3
2.1.55b4
2.1.55b6
2.1.55b7
2.1.55rc1
2.1.55rc2
2.1.55
2.1.56rc1
2.1.56
2.1.57b1
2.1.57rc1
2.1.57
2.1.58
2.1.59
2.1.60
2.1.61b1
2.1.61b2
2.1.61
2.1.62b1
2.1.62rc1
2.1.62
2.1.63
2.1.64
2.1.65
2.1.66b1
2.1.66rc1
2.1.66
23.*
23.10b1
23.10b2
23.10b3
23.10b4
23.10b5
23.10b6
23.10rc1
23.10rc2
23.10rc3
23.10
23.10.1rc1
23.10.1rc2
23.10.1
23.12b1
23.12b2
23.12b3
23.12rc1
23.12
23.12.1
24.*
24.4rc1
24.4rc2
24.4
24.4.1
24.6
24.6.1
24.6.2
24.6.3
24.10b1
24.10b2
24.10b3
24.10b4
24.10rc1
24.10rc2
24.11rc1
24.11rc2
24.11
25.*
25.1b1
25.1rc1
25.2rc1
25.2
25.2.1
25.2.2
25.2.3
25.2.4
25.2.5
25.2.6
25.2.7
25.5b1
25.5b2
25.6b1
25.6b2
25.6b3
25.6b4
25.6b5
25.6b6
25.6b7
25.7
25.7.1
25.7.2
25.7.3rc1
25.7.3
25.7.4
25.7.5
25.8b1
25.8b2
25.8b3
25.8b4
25.8b5
25.9rc1
25.9
25.9.1
25.9.2

Database specific

source 
"https://github.com/pypa/advisory-database/blob/main/vulns/aqt/PYSEC-2026-3459.yaml"