CVE-2026-77767 Missing authorization in reconmap
Unauthenticated attackers can access sensitive project and client details via the report preview endpoint due to missing authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77767?
CVE-2026-77767 is a high-severity missing authorization vulnerability in reconmap, published on 21 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Reconmap's API applies a fallback authorization policy in apps/api/app/Program.cs that requires an authenticated user holding the administrator role, so controllers without their own attribute reject anonymous callers. The report preview action in apps/api/app/Controllers/ReportsController.cs carries [AllowAnonymous] and therefore opts out of that policy. PreviewReport loads the Project row named by the id path segment, loads the linked Organisation through the project's ClientId, and renders both into default-report-template.html, which prints the project name and description together with the client organisation's name, address and URL. No authentication, project membership or role check is performed. Because the id is the auto-increment primary key of the project table, an unauthenticated remote caller can walk sequential ids to retrieve the engagement details and client organisation of every project on the instance, and the 404 returned for a missing id reveals which project ids exist. Reconmap stores penetration-testing engagements, so the disclosed descriptions and client records are sensitive by nature.
Weakness: CWE-862
Which versions are affected by CVE-2026-77767?
How do I fix CVE-2026-77767?
No fix has been published for CVE-2026-77767 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-77767 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-77767 exists.
Sources
Also known as GHSA-5r22-jfv5-3cpg, GHSA-mhrh-jfmr-8mmw.