Pigeon is a message board/notepad/social system/blog. Prior to 1.0.201, the application uses $_SERVER['HTTP_HOST'] without validation to construct email verification URLs in the register and resendmail flows. An attacker can manipulate the Host header in the HTTP request, causing the verification link sent to the user's email to point to an attacker-controlled domain. This can lead to account takeover by stealing the email verification token. This vulnerability is fixed in 1.0.201.
Advisories

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Fixes

Solution

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Workaround

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History

Mon, 16 Mar 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 16 Mar 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Kasuganosoras
Kasuganosoras pigeon
Vendors & Products Kasuganosoras
Kasuganosoras pigeon

Fri, 13 Mar 2026 21:30:00 +0000

Type Values Removed Values Added
Description Pigeon is a message board/notepad/social system/blog. Prior to 1.0.201, the application uses $_SERVER['HTTP_HOST'] without validation to construct email verification URLs in the register and resendmail flows. An attacker can manipulate the Host header in the HTTP request, causing the verification link sent to the user's email to point to an attacker-controlled domain. This can lead to account takeover by stealing the email verification token. This vulnerability is fixed in 1.0.201.
Title Pigeon has a Host Header Injection in email verification flow
Weaknesses CWE-74
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-16T16:46:32.353Z

Reserved: 2026-03-12T14:54:24.271Z

Link: CVE-2026-32616

cve-icon Vulnrichment

Updated: 2026-03-16T16:46:29.485Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-16T14:19:39.393

Modified: 2026-03-16T14:53:07.390

Link: CVE-2026-32616

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-16T09:22:47Z

Weaknesses