CVE-2026-9733

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

23/06/2026

Last modified:

23/06/2026

Description

Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter.<br /> <br /> When no state generator is specified in the constructor, the module defaults to using a SHA-1 hash of predictable and low-entropy sources, including the epoch time (which is leaked via the HTTP Date header) and a call to Perl&#39;s built-in rand function.<br /> <br /> A predictable state allows an attacker to hijack another user&#39;s session through cross site request forgery (CSRF).

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 9.10 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): None

Base Score 3.x

9.10

Severity 3.x

CRITICAL

CVE-2026-9733

Description

Impact

References to Advisories, Solutions, and Tools