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CVE

CVE-2026-32616

Pigeon has a Host Header Injection in email verification flow
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CVE

CVE-2026-32616

Pigeon has a Host Header Injection in email verification flow

Pigeon is a message board/notepad/social system/blog. Prior to 1.0.201, the application uses $SERVER['HTTPHOST'] 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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.2
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
C
H
U
-

Related Resources

No items found.

References

https://github.com/kasuganosoras/Pigeon/releases/tag/1.0.201, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32616.json, https://github.com/kasuganosoras/Pigeon/security/advisories/GHSA-rrj4-9wgq-prcr, https://nvd.nist.gov/vuln/detail/CVE-2026-32616

Severity

8.2

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
8.2
EPSS Probability
0.00044%
EPSS Percentile
0.13761%
Introduced Version
0
Fix Available
3dbf55e7c66098a9f952f790efb753702d7227c6

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