CVE-2026-123820 json
Wagtail: Improper restriction handling on descendant collections in Documents and Images API
published 2mo ago modified yesterday also EUVD-2026-120458 , GHSA-c2xx-cjmh-9q8f
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 22%
- public exploits
- 0
- none known
Summary
Wagtail is an open source content management system built on Django. Prior to 7.0.9, 7.3.4, 7.4.3, and 8.0rc2, the Wagtail Documents and Images API V2 excludes directly restricted collections but fails to exclude their descendant collections, even though descendants inherit ancestor view restrictions. An API user can therefore list the filenames and names of documents and images stored in descendant collections that should remain private. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.
Patch / fix
- pypi wagtail 7.0.9, 7.3.4, 7.4.3, 8.0rc2
- github.com/wagtail/wagtail@320c37e commit
- github.com/wagtail/wagtail@9a69e0a commit
- github.com/wagtail/wagtail@b8a2040 commit
- github.com/wagtail/wagtail@cba8038 commit
- github.com/wagtail/wagtail/releases/tag/v7.0.9 release
- github.com/wagtail/wagtail/releases/tag/v7.3.4 release
- github.com/wagtail/wagtail/releases/tag/v7.4.3 release
- github.com/wagtail/wagtail/releases/tag/v8.0rc2 release
Is CVE-2026-123820 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- yesterday
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | wagtail | <7.0.9 >=7.1, <7.3.4 >=7.4, <7.4.3 >=8.0rc1, <8.0rc2 |
7.0.9 7.3.4 7.4.3 8.0rc2 |
Affected products
- wagtail wagtail
Classification
- Weakness
-
- CWE-280 Improper Handling of Insufficient Permissions or Privileges
References
- github.com /wagtail/wagtail/commit/320c37ed4624702d3864ce2364ce8536b2ce5115
- github.com /wagtail/wagtail/commit/9a69e0ad153c515ddd86ddd33d2c9d2554201568
- github.com /wagtail/wagtail/commit/b8a2040dfcdb97498b746254ad8bb4e47e21358c
- github.com /wagtail/wagtail/commit/cba80389067121c0fae41a3312e2daf76f0eb206
-
github.com
/wagtail/wagtail/security/advisories/GHSA-c2xx-cjmh-9q8f
web
- github.com /wagtail/wagtail/releases/tag/v7.0.9
- github.com /wagtail/wagtail/releases/tag/v7.3.4
- github.com /wagtail/wagtail/releases/tag/v7.4.3
- github.com /wagtail/wagtail/releases/tag/v8.0rc2
-
github.com
/wagtail/wagtail
package
Sources
- CVE List CVE-2026-123820
- GitHub Advisory GHSA-c2xx-cjmh-9q8f
- NVD CVE-2026-123820
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.