CVE-2026-125105 Wagtail: Identification of documents by SHA1 hash
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-125105?
CVE-2026-125105 is a low-severity vulnerability in wagtail, published on 9 Nov 2026.
Official 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, Wagtail applies ETag conditional request processing to the document serve endpoint before document permission and filename checks complete. An unauthenticated attacker who knows a document ID and a candidate SHA1 hash can submit If-Match or If-None-Match and distinguish the response, revealing whether that hash is present in the document library. The issue does not expose document contents, filenames, other metadata, or information about hashes the attacker does not already know. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.
Weakness: CWE-280
Which versions are affected by CVE-2026-125105?
4 open source packages ship an affected version, including wagtail.
| Package | Affected | Fixed in |
|---|---|---|
wagtail PyPI | All versions | 7.0.9 |
wagtail PyPI | From 7.1 | 7.3.4 |
wagtail PyPI | From 7.4 | 7.4.3 |
wagtail PyPI | From 8.0rc1 | 8.0rc2 |
How do I fix CVE-2026-125105?
Upgrade wagtail to a fixed version for your release line: 7.0.9, 7.3.4, 7.4.3 or 8.0rc2.
Is CVE-2026-125105 being exploited?
There is no known exploitation of CVE-2026-125105 in the wild and no public exploit code.
Sources
Also known as GHSA-92hv-j533-69wc.