PT-2026-25381 · Kasuganosoras+1 · Pigeon

Mabjr33 + 1 · CVE-2026-32616 · Published 2026-03-13 · Updated 2026-03-16

Positive Technologies (AI Summary)

CVSS v3.1

8.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Pigeon versions prior to 1.0.201

Description Pigeon is a message board/notepad/social system/blog. The application uses $ SERVER['HTTP HOST'] without validation when constructing email verification URLs in the register and resendmail flows. An attacker can manipulate the Host header in an HTTP request, causing the verification link sent to a user’s email to point to an attacker-controlled domain. This can lead to account takeover by stealing the email verification token. The vulnerable component uses the $ SERVER['HTTP HOST'] variable to construct the email verification URL.

Recommendations Update Pigeon to version 1.0.201 or later.

Exploit

Fix

Special Elements Injection

Weakness Enumeration

CWE-74

Related Identifiers

CVE-2026-32616

GHSA-RRJ4-9WGQ-PRCR

Affected Products

Pigeon

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32616.json · Exploit
• https://osv.dev/vulnerability/CVE-2026-32616 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-32616 · Security Note
• https://github.com/kasuganosoras/Pigeon/releases/tag/1.0.201 · Note
• https://github.com/kasuganosoras/Pigeon/security/advisories/GHSA-rrj4-9wgq-prcr · Note
• https://twitter.com/CVEnew/status/2032605828465721770 · Twitter Post
• https://t.me/CVEtracker/47383 · Telegram Post