CVE-2026-75627
Bastillion fails to properly validate request URI paths in its controller dispatcher, allowing unauthenticated attackers to bypass authentic
CVSS
9.8
Critical
EPSS
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KEV
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Exploit Today
0
0-100
Published: Aug 18, 2026 · Last modified: Aug 18, 2026 · CWE-288
Not enough EPSS history yet.
Bastillion fails to properly validate request URI paths in its controller dispatcher, allowing unauthenticated attackers to bypass authentication filters by prefixing requests with arbitrary path segments. Attackers can access administrative controllers to read user listings, create manager accounts, and register managed systems, gaining control over SSH access to the managed fleet.
- github.comhttps://github.com/bastillion-io/Bastillion
- github.comhttps://github.com/bastillion-io/Bastillion/blob/master/src/main/java/loophole/mvc/base/BaseKontroller.java
- github.comhttps://github.com/bastillion-io/Bastillion/commit/d759fb686a1a097b1b026e286fd9b20e5ba349c8
- github.comhttps://github.com/bastillion-io/Bastillion/issues/669
- www.vulncheck.comhttps://www.vulncheck.com/advisories/bastillion-authentication-bypass-via-path-prefix-routing-mismatch
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-750459.1 CRI—
——0In JetBrains YouTrack before 2025.3.156085,
2026.1.13913,
2026.2.18112 an unauthenticated attacker could download database backups via shared draft signature22hCVE-2026-664659.8 CRI33.6%
——10Unauthenticated Broken Authentication in Cartify <= 1.3.0.1 versions.4dCVE-2026-664539.8 CRI33.6%
——10Unauthenticated Broken Authentication in Salon booking system <= 10.30.26 versions.4dCVE-2026-704688.1 HIG45.3%
——14A authentication bypass using an alternate path or channel vulnerability in Fortinet FortiManager 7.6.1, FortiManager 7.4.3 through 7.4.5, FortiManager 7.2.5 through 7.2.9, FortiManager Cloud 7.6.1, FortiManager Cloud 7.4.3 through 7.4.5, FortiManager Cloud 7.2.5 through 7.2.9 may allow attacker to improper access control via <insert attack vector here>6dCVE-2026-186366.8 MED14.8%
——4The Velociraptor gRPC API has a VFSGetBuffer endpoint which allows reading files from the datastore. To prevent users from reading sensitive files or accessing other orgs, the requested path is prefix checked against a list of denied prefixes. This prefix check can be bypassed allowing a user to access usually denied files. If the user has read permission in the ROOT org, this allows access to other orgs, in which the user may not have permission.7dCVE-2026-726917.5 HIG32.4%
——10An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTER_KEY-signed file access tokens for arbitrary stored files via the getsignedurl Parse cloud function. The function skips its isAuthenticated check whenever any docId parameter is supplied, even one corresponding to no real document, allowing the authentication gate to be bypassed by supplying an arbitrary string as docId.8d