PAGI::Middleware::Session::Store::Cookie versions through 0.001003 for Perl generates random bytes insecurely

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2026-5087
StatePUBLISHED
AssignerCPANSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-31 16:16:35 UTC
Updated2026-04-01 16:23:52 UTC
DescriptionPAGI::Middleware::Session::Store::Cookie versions through 0.001003 for Perl generates random bytes insecurely. PAGI::Middleware::Session::Store::Cookie attempts to read bytes from the /dev/urandom device directly. If that fails (for example, on systems without the device, such as Windows), then it will emit a warning that recommends the user install Crypt::URandom, and then return a string of random bytes generated by the built-in rand function, which is unsuitable for cryptographic applications. This modules does not use the Crypt::URandom module, and installing it will not fix the problem. The random bytes are used for generating an initialisation vector (IV) to encrypt the cookie. A predictable IV may make it easier for malicious users to decrypt and tamper with the session data that is stored in the cookie.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.000170000 probability, percentile 0.039070000 (date 2026-04-01)

Problem Types: CWE-338 | CWE-1204 | CWE-338 CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator | CWE-1204 CWE-1204 Generation of Weak Initialization Vector (IV)

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA JJNAPIORK PAGIMiddlewareSessionStoreCookie affected 0.001003 custom Not specified

References

ReferenceSourceLinkTags
metacpan.org/release/JJNAPIORK/PAGI-Middleware-Session-Store-Cookie-0.0010... 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org
www.openwall.com/lists/oss-security/2026/03/31/10 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
metacpan.org/release/JJNAPIORK/PAGI-Middleware-Session-Store-Cookie-0.0010... 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: Upgrade to version 0.001004 or newer.

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