HOMEVULNERABILITIESCVE-2026-5083
MEDIUM

CVE-2026-5083

CWE-338Published: April 8, 2026· Updated: Apr 8, 2026

5.3
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:4.0th

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Note that Ado is no longer maintained, and has been removed from the CPAN index.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.

NVD Source

Technical Analysis

CVE-2026-5083 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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All References (4)

Quick Facts

CVE IDCVE-2026-5083
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-338
CISA KEVNo
EPSS (30d)0.02%
PublishedApr 8, 2026

Related CVEs (CWE-338)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-5083 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.