Jeremy Evans Rodauth up to 2.44.x WebAuthn Login improper authentication

Summaryinfo

A vulnerability categorized as critical has been discovered in Jeremy Evans Rodauth up to 2.44.x. This vulnerability affects unknown code of the component WebAuthn Login. Executing a manipulation can lead to improper authentication. This vulnerability appears as CVE-2026-82466. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability has been found in Jeremy Evans Rodauth up to 2.44.x and classified as critical. This vulnerability affects an unknown functionality of the component WebAuthn Login. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Rodauth before 2.46.0 contains an authentication bypass vulnerability in the webauthn_login route that allows logged-in users to authenticate as any other account. Attackers can exploit improper account resolution logic that falls back to session account identifiers instead of validating the credential binding to complete authentication as arbitrary users.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-82466 since 08/29/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 2.46.0 eliminates this vulnerability.

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Productinfo

Vendor

• Jeremy Evans

Name

• Rodauth

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18
• 2.19
• 2.20
• 2.21
• 2.22
• 2.23
• 2.24
• 2.25
• 2.26
• 2.27
• 2.28
• 2.29
• 2.30
• 2.31
• 2.32
• 2.33
• 2.34
• 2.35
• 2.36
• 2.37
• 2.38
• 2.39
• 2.40
• 2.41
• 2.42
• 2.43
• 2.44

CPE 2.3info

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CPE 2.2info

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