Quick answers
- Is CVE-2026-57447 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-57447 being exploited in the wild.
- How severe is CVE-2026-57447?
- Medium severity, with a CVSS score of 4.3, published 16 October 2026.
- Which products and versions are affected?
- Discourse Doc Categories.
- Is there a fix for CVE-2026-57447?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-57447 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-57447?
- Check whether you run Discourse Doc Categories. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The doc category index refresh function resolves linked topic titles without enforcing authorization checks, allowing users with edit permissions on the index topic to enumerate private or restricted topic titles through probing. The vulnerability requires the attacker to have edit privileges on the index topic and affects the index refresh service component. The fix is implemented in commit b15d4de02ad29d7c9525346afee51fef4a2c605a, which adds proper authorization enforcement to the index refresh logic.
Affected products
- Discourse Doc Categories
Timeline
- 2026-06-17: disclosed
- 2026-10-16: advisory