CVE-2026-116199 in Snipe-IT
Summary
by MITRE • 10/25/2026
Snipe-IT before 8.6.3 contains an authentication bypass in GoogleAuthController::handleGoogleCallback, which logs in the user whose username matches the Google account email without enforcing the activated flag. Deactivated users with email-shaped usernames and still-live Google identities can sign in via Google SSO and regain sessions at their original permission level, including admin.
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Analysis
by VulDB Data Team • 10/25/2026
The vulnerability identified in Snipe-IT versions prior to 8.6.3 represents a critical authentication bypass within the Google Single Sign-On integration mechanism. Specifically, the flaw resides in the handleGoogleCallback method of the GoogleAuthController class. This function is responsible for processing incoming OAuth callbacks from Google and establishing user sessions based on the identity information returned by the provider. The core technical deficiency lies in the logic that maps external identities to internal application users. When a valid Google authentication response is received, the system searches for an existing user account whose username matches the email address provided in the Google profile. Crucially, this lookup and session creation process fails to verify whether the corresponding local user account has been deactivated or disabled within the Snipe-IT database. This oversight allows any user who was previously deactivated but retains a matching active identity with their external Google provider to bypass access controls entirely.
From an operational perspective, this vulnerability enables unauthorized access for accounts that should have been revoked. In many organizational security models, deactivating a user account is the primary method of revoking access when an employee leaves or changes roles. However, because Snipe-IT does not check the activated status flag during the SSO login flow, these users can immediately regain full session privileges upon logging in via Google. This effectively nullifies administrative efforts to restrict access for former employees or compromised accounts that have been disabled locally but still possess valid external credentials. The impact is particularly severe if such a user holds elevated permissions, including administrator rights, as it allows them to perform any action available to their role level without restriction.
This flaw aligns with CWE-287, which describes Improper Authentication, specifically involving the failure to enforce authentication state or status checks during login processes. It also relates to CWE-613, Insufficient Session Expiration, as it allows previously terminated sessions to be reactivated through a different authentication vector. In terms of MITRE ATT&CK mapping, this vulnerability facilitates Initial Access via Valid Accounts and potentially Privilege Escalation if the user holds administrative roles. Attackers can exploit this by identifying deactivated users with email-formatted usernames who still have active Google accounts linked or associated in some manner that allows them to authenticate against Google's identity provider. By initiating a login through Snipe-IT’s Google SSO option, they trigger the vulnerable callback handler which grants access without verifying local account status.
To mitigate this risk, organizations running affected versions of Snipe-IT must upgrade immediately to version 8.6.3 or later where the authentication logic has been corrected to enforce the activated flag check during the OAuth callback processing. Until an upgrade is performed, administrators should consider disabling Google SSO for specific high-risk accounts or ensuring that all deactivated users have their associated external identities removed from any linked services if possible. Additionally, implementing multi-factor authentication beyond just SSO and regularly auditing user access rights can provide defense-in-depth against such bypass attempts. It is also advisable to review logs for unusual login patterns involving previously inactive accounts to detect potential exploitation in real-time.