Medium severity · published May 21, 2026
CVE-2026-5091
Catalyst::Plugin::Authentication versions through 0.10024 for Perl is susceptible to timing attacks
5.1
CVSS
0.2%
EPSS
No
On KEV
Description
Catalyst::Plugin::Authentication versions through 0.10024 for Perl is susceptible to timing attacks.
These versions use Perl's built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash or password.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CA
Catalyst::Plugin::Authentication · JJNAPIORK
through 0.10024 · source: vendor
Affected product
CA
Catalyst::Plugin::Authentication
JJNAPIORK
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5091
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-5091
github.com
https://github.com/perl-catalyst/Catalyst-Plugin-Authentication/commit/b0515f492257438cf07082acf1e10d06e8088a5e.patch
metacpan.org
https://metacpan.org/release/ETHER/Catalyst-Plugin-Authentication-0.10_025/changes
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/05/21/19