Internet Routing Registry daemon version 4 is an IRR database server, processing IRR objects in the RPSL format. From version 4.4.0 to before version 4.4.5 and from version 4.5.0 to before version 4.5.1, an attacker can manipulate the HTTP Host header on a password reset or account creation request. The confirmation link in the resulting email can then point to an attacker-controlled domain. Opening the link in the email is sufficient to pass the token to the attacker, who can then use it on the real IRRD instance to take over the account. A compromised account can then be used to modify RPSL objects maintained by the account's mntners and perform other account actions. If the user had two-factor authentication configured, which is required for users with override access, an attacker is not able to log in, even after successfully resetting the password. This issue has been patched in versions 4.4.5 and 4.5.1.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-22m3-c7vp-49fj IRRd: web UI host header injection allows password reset poisoning via attacker-controlled email links
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 06 Mar 2026 04:45:00 +0000

Type Values Removed Values Added
Description Internet Routing Registry daemon version 4 is an IRR database server, processing IRR objects in the RPSL format. From version 4.4.0 to before version 4.4.5 and from version 4.5.0 to before version 4.5.1, an attacker can manipulate the HTTP Host header on a password reset or account creation request. The confirmation link in the resulting email can then point to an attacker-controlled domain. Opening the link in the email is sufficient to pass the token to the attacker, who can then use it on the real IRRD instance to take over the account. A compromised account can then be used to modify RPSL objects maintained by the account's mntners and perform other account actions. If the user had two-factor authentication configured, which is required for users with override access, an attacker is not able to log in, even after successfully resetting the password. This issue has been patched in versions 4.4.5 and 4.5.1.
Title IRRd: web UI host header injection allows password reset poisoning via attacker-controlled email links
Weaknesses CWE-601
CWE-640
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-06T04:35:59.899Z

Reserved: 2026-03-02T21:43:19.927Z

Link: CVE-2026-28681

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-06T05:16:37.710

Modified: 2026-03-06T05:16:37.710

Link: CVE-2026-28681

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses