GHSA-92HV-J533-69WC

Wagtail: Identification of documents by SHA1 hash

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
• Email us at [email protected] (view our security policy for more information).

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.

GHSA-92HV-J533-69WC has a CVSS score of 3.7 (Low). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (7.0.9, 7.3.4, 7.4.3, 8.0rc2); upgrading removes the vulnerable code path.

Kodem intelligence

Already deployed Kodem?

Patched versions have been released as Wagtail 7.0.9, 7.3.4, 7.4.3 and 8.0rc2.

1. What is GHSA-92HV-J533-69WC? GHSA-92HV-J533-69WC is a low-severity security vulnerability in wagtail (pip), affecting versions < 7.0.9. It is fixed in 7.0.9, 7.3.4, 7.4.3, 8.0rc2.
2. How severe is GHSA-92HV-J533-69WC? GHSA-92HV-J533-69WC has a CVSS score of 3.7 (Low). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of wagtail are affected by GHSA-92HV-J533-69WC? wagtail (pip) versions < 7.0.9 is affected.
4. Is there a fix for GHSA-92HV-J533-69WC? Yes. GHSA-92HV-J533-69WC is fixed in 7.0.9, 7.3.4, 7.4.3, 8.0rc2. Upgrade to this version or later.
5. Is GHSA-92HV-J533-69WC exploitable, and should I be worried? Whether GHSA-92HV-J533-69WC is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether GHSA-92HV-J533-69WC is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix GHSA-92HV-J533-69WC?
   • Upgrade wagtail to 7.0.9 or later
   • Upgrade wagtail to 7.3.4 or later
   • Upgrade wagtail to 7.4.3 or later
   • Upgrade wagtail to 8.0rc2 or later

Other vulnerabilities in wagtail