CVE-2026-1089 PUBLISHED

User‑Controlled HTTP Header In Fortra's GoAnywhere MFT Allows Arbitrary DNS Lookups

Assigner: Fortra
Reserved: 16.01.2026 Published: 21.04.2026 Updated: 21.04.2026

User‑Controlled HTTP Header in Fortra's GoAnywhere MFT prior to version 7.10.0 allows attackers to trigger a DNS lookup, as well as DNS Rebinding and Information Disclosure.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CVSS Score: 6.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	Fortra
Product	GoAnywhere MFT
Versions	Default: unaffected affected from 0 to 7.10.0 (excl.)

Solutions

Upgrade to a remediated version (version 7.10.0 or later).

References

https://www.fortra.com/security/advisories/product-security/fi-2026-005

Problem Types

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE

Impacts

CAPEC-142 DNS Cache Poisoning