CVE-2026-25555 Details.
OpenBullet2 <= 0.3.2 - Authentication Bypass
Atlas does not check this one. Works by exploiting the flaw.
The only reliable test for this one is to try the weakness itself, which can disturb the site. Atlas does not do that, so it does not run this check.
About CVE-2026-25555. What It Means.
OpenBullet2 <= 0.3.2 contains an authentication bypass caused by improper API key authentication middleware handling empty X-Api-Key header, letting unauthenticated attackers gain admin access, exploit requires sending empty X-Api-Key header.
Affected Product. What Is Hit.
- Vendor
- openbullet
- Product
- Openbullet OPENBULLET2
FAQ
Common Questions.
OpenBullet2 <= 0.3.2 - Authentication Bypass. OpenBullet2 <= 0.3.2 contains an authentication bypass caused by improper API key authentication middleware handling empty X-Api-Key header, letting unauthenticated attackers gain admin access, exploit requires sending empty X-Api-Key header.
No. The only reliable test for this one is to try the weakness itself, which can disturb the site. Atlas does not do that, so it does not run this check. The facts about CVE-2026-25555 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
CVE-2026-25555 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing.
Update Openbullet OPENBULLET2 to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. Vendor links are listed on this page when they are known.
This page lists the public facts about CVE-2026-25555. Atlas does not run a check for it, so nothing here says whether a particular site is affected.