---
title: "CVE-2026-55682: WeGIA - Authentication Bypass"
description: "WeGIA < 3.8.6 contains a session fixation vulnerability caused by reflection of attacker-supplied PHPSESSID cookie and use of DB_HOST as cookie domain, letting attackers hijack authenticated sessions and disclose internal DB host, exploit requires victim authentication with attacker-chosen session ID."
url: https://panop.io/threat-heartbeat/CVE-2026-55682/
---

# CVE-2026-55682 WeGIA - Authentication Bypass

WeGIA < 3.8.6 contains a session fixation vulnerability caused by reflection of attacker-supplied PHPSESSID cookie and use of DB\_HOST as cookie domain, letting attackers hijack authenticated sessions and disclose internal DB host, exploit requires victim authentication with attacker-chosen session ID.

CVSS base score 8.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-55682)

## Details

Type

Authentication Bypass

Impact

Broken Access Control, Information Disclosure

CVSS vector

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

Published

14 October 2026

Updated

15 October 2026

Weakness

[CWE-200](https://cwe.mitre.org/data/definitions/200.html)

## Vendor fix

Update to version 3.8.6 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-55682](https://nvd.nist.gov/vuln/detail/CVE-2026-55682)
- [https://github.com/LabRedesCefetRJ/WeGIA/releases/tag/3.8.6](https://github.com/LabRedesCefetRJ/WeGIA/releases/tag/3.8.6)
- [https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-5xhr-jrv8-j4j2](https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-5xhr-jrv8-j4j2)
- [https://github.com/LabRedesCefetRJ/WeGIA/commit/f59cad3ac7292225e88699cac82775a9f534be05](https://github.com/LabRedesCefetRJ/WeGIA/commit/f59cad3ac7292225e88699cac82775a9f534be05)
- [https://github.com/LabRedesCefetRJ/WeGIA/issues/221](https://github.com/LabRedesCefetRJ/WeGIA/issues/221)
- [https://github.com/LabRedesCefetRJ/WeGIA/pull/1705](https://github.com/LabRedesCefetRJ/WeGIA/pull/1705)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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