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.
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Affected Vendors & Products
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History
Fri, 06 Mar 2026 04:45:00 +0000
| Type | Values Removed | Values Added |
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| 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 |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-03-06T04:35:59.899Z
Updated: 2026-03-06T04:35:59.899Z
Reserved: 2026-03-02T21:43:19.927Z
Link: CVE-2026-28681
No data.
Status : Received
Published: 2026-03-06T05:16:37.710
Modified: 2026-03-06T05:16:37.710
Link: CVE-2026-28681
No data.