Answer in brief
CVE-2026-125105 records a Low severity (CVSS 3.7) vulnerability in Wagtail: Identification of documents by SHA1 hash. The current sources do not mark it as known exploited. The current feed maps wagtail (pip), wagtail (pip), wagtail (pip), wagtail (pip) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 3.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps wagtail (pip), wagtail (pip), wagtail (pip), wagtail (pip) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| wagtailpip | <7.0.9 | 7.0.9 |
| wagtailpip | >=7.1,<7.3.4 | 7.3.4 |
| wagtailpip | >=7.4,<7.4.3 | 7.4.3 |
| wagtailpip | =8.0rc1 | 8.0rc2 |
| wagtailpypi | >=0 <7.0.9 | 7.0.9 |
| wagtailpypi | >=7.1 <7.3.4 | 7.3.4 |
| wagtailpypi | >=7.4 <7.4.3 | 7.4.3 |
| wagtailpypi | >=8.0rc1 <8.0rc2 | 8.0rc2 |
Published upstream
Aug 20, 2026
Evidence: source:ghsa:source_dates:source-dates:recordSource modified
Nov 9, 2026
Evidence: source:ghsa:source_dates:source-dates:recordFirst seen by HOL
Aug 20, 2026
### Impact By passing specific HTTP headers to the document serve URL endpoint, an attacker was able to determine whether a document with a given ID matched a specified SHA1 hash, regardless of any permission restrictions on the document or knowing its filename. This could allow an attacker to determine whether a document with a specific known hash is present in the Wagtail document library. This vulnerability does not expose the document's contents or any metadata beyond the already known SHA1 hash, and does not expose information about any documents for which the attacker does not know the SHA1 hash. ### Patches Patched versions have been released as Wagtail 7.0.9, 7.3.4, 7.4.3 and 8.0rc2. ### Workarounds Site owners who are unable to upgrade can strip `If-Match` and `If-None-Match` from anonymous requests to `/documents/` at the reverse proxy, or use a custom document model without a `file_hash` attribute. ### Acknowledgements Many thanks to Anand Himanshu for reporting this issue. ### For more information If you have any questions or comments about this advisory: * Visit Wagtail's [support channels](https://docs.wagtail.org/en/stable/support.html) * Email us at [[email protected]](mailto:[email protected]) (view our [security policy](https://github.com/wagtail/wagtail/security/policy) for more information).
Quoted source text, attributed separately from HOL analysis.