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CVE-2026-5083

MEDIUM

5.3

Description

Ado::Sessions versions through 0.935 for Perl generates insecure session ids. The session id is generated from a SHA-1 hash seeded with the built-in rand function, the epoch time, and the PID. The PID will come from a small set of numbers, and the epoch time may be guessed, if it is not leaked from the HTTP Date header. The built-in rand function is unsuitable for cryptographic usage. Predicable session ids could allow an attacker to gain access to systems. Note that Ado is no longer maintained, and has been removed from the CPAN index. It is still available on BackPAN.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/8/2026

Last Modified4/8/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-338CWE-340

References

https://backpan.perl.org/authors/id/B/BE/BEROV/Ado-0.935.tar.gz(9b29abf9-4ab0-4765-b253-1875cd9b441e)

https://github.com/kberov/Ado/issues/112(9b29abf9-4ab0-4765-b253-1875cd9b441e)

https://security.metacpan.org/docs/guides/random-data-for-security.html(9b29abf9-4ab0-4765-b253-1875cd9b441e)

http://www.openwall.com/lists/oss-security/2026/04/08/7(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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