CVE-2026-5083 Ado::Sessions versions through 0.935 for Perl generates insecure session ids
Predictable session IDs in Ado::Sessions allow attackers to hijack user sessions and gain unauthorized access to systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5083?
CVE-2026-5083 is a medium-severity vulnerability in BEROV Ado::Sessions, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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Note that Ado is no longer maintained, and has been removed from the CPAN index.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.
Which versions are affected by CVE-2026-5083?
It affects 1 product.
Products include Berov Ado\.
How do I fix CVE-2026-5083?
No fix has been published for CVE-2026-5083 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-5083 being exploited?
There is no known exploitation of CVE-2026-5083 in the wild and no public exploit code.
Sources
Also known as GHSA-3vcr-g3hm-2qr2.