CPANSA-Mojolicious-Plugin-Web-Auth-2026-9733: Mojolicious-Plugin-Web-Auth vulnerability
| Publisher | giterlizzi | Document category | csaf_security_advisory |
|---|---|---|---|
| Initial release date | 2026-06-23T00:00:00 | Engine | CSAF Perl Toolkit 0.26 |
| Current release date | 2026-06-23T00:00:00 | Build Date | |
| Current version | 1 | Status | final |
| CVSS v3.1 Base Score | 9.1 | Severity | |
| Original language | Language | en | |
| Also referred to | |||
Vulnerability Description
Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter. 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's built-in rand function. A predictable state allows an attacker to hijack another user's session through cross site request forgery (CSRF).
Vulnerabilities
CVE-2026-9733
Vulnerability DescriptionMojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter.
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's built-in rand function.
A predictable state allows an attacker to hijack another user's session through cross site request forgery (CSRF).
| Weakness | CWE-338 : Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) |
|---|
Product status
Known affected
| Product | Score | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Mojolicious-Plugin-Web-Auth greater than 0 |
|
giterlizzi
Namespace: https://github.com/giterlizzi/
gdt@cpan.org
References
- CPANSA-Mojolicious-Plugin-Web-Auth-2026-9733 JSON self
https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-mojolicious-plugin-web-auth-2026-9733.json - https://datatracker.ietf.org/doc/html/rfc6749#section-10.12 external
https://datatracker.ietf.org/doc/html/rfc6749#section-10.12 - https://metacpan.org/release/HAYAJO/Mojolicious-Plugin-Web-Auth-0.17/source/lib/Mojolicious/Plugin/Web/Auth/OAuth2.pm#L129-131 external
https://metacpan.org/release/HAYAJO/Mojolicious-Plugin-Web-Auth-0.17/source/lib/Mojolicious/Plugin/Web/Auth/OAuth2.pm#L129-131 - https://security.metacpan.org/patches/M/Mojolicious-Plugin-Web-Auth/0.17/CVE-2026-9733-r2.patch external
https://security.metacpan.org/patches/M/Mojolicious-Plugin-Web-Auth/0.17/CVE-2026-9733-r2.patch - http://www.openwall.com/lists/oss-security/2026/06/23/1 external
http://www.openwall.com/lists/oss-security/2026/06/23/1 - CVE-2026-9733 (NVD) external
https://nvd.nist.gov/vuln/detail/CVE-2026-9733
Revision history
| Version | Date of the revision | Summary of the revision |
|---|---|---|
| 1 | Tue Jun 23 00:00:00 2026 | First release |
Sharing rules
TLP:WHITE
For the TLP version see: https://www.first.org/tlp/