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LOW severity

GHSA-92hv-j533-69wc — wagtail

LOW

GHSA-92hv-j533-69wc is a low-severity (CVSS 3.7) vulnerability in wagtail. A fix is available for wagtail — see the affected versions and patch details below.

Wagtail: Identification of documents by SHA1 hash

Published
Updated
Affected
4 pkgs
Patched
4 / 4
Exploits
None indexed
Exploitation data as of Aug 20, 2026 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

4 pkgs affected
🐍wagtail🐍wagtail🐍wagtail🐍wagtail

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

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:

Affected Packages

4 total 4 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIwagtailall versions7.0.9pip install --upgrade 'wagtail==7.0.9'
🐍PyPIwagtail≥ 7.1&&< 7.3.47.3.4pip install --upgrade 'wagtail==7.3.4'
🐍PyPIwagtail≥ 7.4&&< 7.4.37.4.3pip install --upgrade 'wagtail==7.4.3'
🐍PyPIwagtail≥ 8.0rc1&&< 8.0rc28.0rc2pip install --upgrade 'wagtail==8.0rc2'

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for wagtail, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update wagtail to 7.0.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-92hv-j533-69wc is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

### 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
O3 Security · Impact-Aware SCA

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GHSA-92hv-j533-69wc: Fixed in 7.0.9 (Low 3.7) | O3 Security