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VulnerabilityPublished

CVE-2026-78188: WebDyne (Perl module) · Sensitive Cookie in HTTPS Session Without 'Secure' Attribute

Affects WebDyne (Perl module)Source CVE Database V5

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Not known to be exploited : upgrade to 3.022 soon.

Data as of 31 Oct 2026, 14:54 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 3.022

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 31 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade WebDyne (Perl module) to 3.022.

Affected software

ProductAffectedFixed in
WebDyneAffected
  • >=2.014 <3.022
Fixed in
  • 3.022
CPANWebDynepkg:cpan/WebDyneOther threatsAffected
  • >=2.014 <3.022
Fixed in
  • 3.022

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade WebDyne to version 3.022 or later, where session cookies are properly set with Secure, HttpOnly, and SameSite attributes. This update mitigates the risk of session cookie theft by ensuring cookies are only sent over HTTPS and are protected from client-side script access and cross-site request forgery.

Description

WebDyne versions from 2.014 up to but not including 3.022 for Perl set session cookies without the Secure, HttpOnly, and SameSite attributes. This allows browsers to send session IDs over plain HTTP and with cross-site requests, exposing them to theft by network attackers or malicious scripts. The vulnerability is fixed in version 3.022.

References

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