- Issued:
- 2026-07-27
- Updated:
- 2026-07-27
RHSA-2026:46395 - Security Advisory
Synopsis
Important: go-fdo-server security update
Type/Severity
Security Advisory: Important
Red Hat Lightspeed patch analysis
Identify and remediate systems affected by this advisory.
Topic
An update for go-fdo-server is now available for Red Hat Enterprise Linux 10.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
This package provides a server-side implementation of the FIDO Device Onboard (FDO) specification, written in Go. FDO is an open standard for the late binding of device credentials, allowing for automated and secure on-boarding of devices when they are first powered on in their final location.
Security Fix(es):
- golang.org/x/net/idna: golang: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing (CVE-2026-39821)
- crypto/x509: golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries (CVE-2026-27145)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
Affected Products
- Red Hat Enterprise Linux for x86_64 10 x86_64
- Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 x86_64
- Red Hat Enterprise Linux for ARM 64 10 aarch64
- Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 aarch64
- Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 aarch64
- Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 x86_64
- Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 x86_64
- Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 aarch64
Fixes
- BZ - 2480756 - CVE-2026-39821 golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing
- BZ - 2484207 - CVE-2026-27145 crypto/x509: golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries
Red Hat Enterprise Linux for x86_64 10
| SRPM | |
|---|---|
| go-fdo-server-1.0.1-2.el10_2.3.src.rpm | SHA-256: 9d4c1e7ec846a5b3f39f26ded711c441b5104737a6c22c21d35e6d2448290b31 |
| x86_64 | |
| go-fdo-server-1.0.1-2.el10_2.3.x86_64.rpm | SHA-256: 38c68e3d32727695b7e87f72ae6cc0f6aafa401899c1f80046570d13a7b9d5d9 |
| go-fdo-server-debuginfo-1.0.1-2.el10_2.3.x86_64.rpm | SHA-256: 1d169df3d8d453f18068bd6a7c933ed3e7cf5f610886bc49fe7b6a7e6f29cfab |
| go-fdo-server-debugsource-1.0.1-2.el10_2.3.x86_64.rpm | SHA-256: 128983197995f94390a6cc11b3dadd4759efaccf9e877d35fa83a7530ecd359e |
| go-fdo-server-manufacturer-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: be4c2a1c5a5626e4aedde207ce12a147b6e8d53df5c68c6a20fbf44c2bc46a11 |
| go-fdo-server-owner-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: f794486d791619cf20c46a16e4e83790cbaa366d4abc30ea26f447856f48d15a |
| go-fdo-server-rendezvous-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: 81197c7bf494e72948e6fa5cc2cb6f79364b1732388963b3ee97c331455d5139 |
Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2
| SRPM | |
|---|---|
| go-fdo-server-1.0.1-2.el10_2.3.src.rpm | SHA-256: 9d4c1e7ec846a5b3f39f26ded711c441b5104737a6c22c21d35e6d2448290b31 |
| x86_64 | |
| go-fdo-server-1.0.1-2.el10_2.3.x86_64.rpm | SHA-256: 38c68e3d32727695b7e87f72ae6cc0f6aafa401899c1f80046570d13a7b9d5d9 |
| go-fdo-server-debuginfo-1.0.1-2.el10_2.3.x86_64.rpm | SHA-256: 1d169df3d8d453f18068bd6a7c933ed3e7cf5f610886bc49fe7b6a7e6f29cfab |
| go-fdo-server-debugsource-1.0.1-2.el10_2.3.x86_64.rpm | SHA-256: 128983197995f94390a6cc11b3dadd4759efaccf9e877d35fa83a7530ecd359e |
| go-fdo-server-manufacturer-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: be4c2a1c5a5626e4aedde207ce12a147b6e8d53df5c68c6a20fbf44c2bc46a11 |
| go-fdo-server-owner-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: f794486d791619cf20c46a16e4e83790cbaa366d4abc30ea26f447856f48d15a |
| go-fdo-server-rendezvous-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: 81197c7bf494e72948e6fa5cc2cb6f79364b1732388963b3ee97c331455d5139 |
Red Hat Enterprise Linux for ARM 64 10
| SRPM | |
|---|---|
| go-fdo-server-1.0.1-2.el10_2.3.src.rpm | SHA-256: 9d4c1e7ec846a5b3f39f26ded711c441b5104737a6c22c21d35e6d2448290b31 |
| aarch64 | |
| go-fdo-server-1.0.1-2.el10_2.3.aarch64.rpm | SHA-256: 89376a25f3ad00c132d5f24c6458377b867226104380b099928cc488a340307e |
| go-fdo-server-debuginfo-1.0.1-2.el10_2.3.aarch64.rpm | SHA-256: ef5891e2f8c835e581767b5cc69e5c773b5ca42240777ffe56affb5f78df25fe |
| go-fdo-server-debugsource-1.0.1-2.el10_2.3.aarch64.rpm | SHA-256: ee66ff5d3ee815fa851205dad04f4e1b7e8234d94c35e2cf334f728f4041a23e |
| go-fdo-server-manufacturer-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: be4c2a1c5a5626e4aedde207ce12a147b6e8d53df5c68c6a20fbf44c2bc46a11 |
| go-fdo-server-owner-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: f794486d791619cf20c46a16e4e83790cbaa366d4abc30ea26f447856f48d15a |
| go-fdo-server-rendezvous-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: 81197c7bf494e72948e6fa5cc2cb6f79364b1732388963b3ee97c331455d5139 |
Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2
| SRPM | |
|---|---|
| go-fdo-server-1.0.1-2.el10_2.3.src.rpm | SHA-256: 9d4c1e7ec846a5b3f39f26ded711c441b5104737a6c22c21d35e6d2448290b31 |
| aarch64 | |
| go-fdo-server-1.0.1-2.el10_2.3.aarch64.rpm | SHA-256: 89376a25f3ad00c132d5f24c6458377b867226104380b099928cc488a340307e |
| go-fdo-server-debuginfo-1.0.1-2.el10_2.3.aarch64.rpm | SHA-256: ef5891e2f8c835e581767b5cc69e5c773b5ca42240777ffe56affb5f78df25fe |
| go-fdo-server-debugsource-1.0.1-2.el10_2.3.aarch64.rpm | SHA-256: ee66ff5d3ee815fa851205dad04f4e1b7e8234d94c35e2cf334f728f4041a23e |
| go-fdo-server-manufacturer-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: be4c2a1c5a5626e4aedde207ce12a147b6e8d53df5c68c6a20fbf44c2bc46a11 |
| go-fdo-server-owner-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: f794486d791619cf20c46a16e4e83790cbaa366d4abc30ea26f447856f48d15a |
| go-fdo-server-rendezvous-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: 81197c7bf494e72948e6fa5cc2cb6f79364b1732388963b3ee97c331455d5139 |
Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2
| SRPM | |
|---|---|
| go-fdo-server-1.0.1-2.el10_2.3.src.rpm | SHA-256: 9d4c1e7ec846a5b3f39f26ded711c441b5104737a6c22c21d35e6d2448290b31 |
| aarch64 | |
| go-fdo-server-1.0.1-2.el10_2.3.aarch64.rpm | SHA-256: 89376a25f3ad00c132d5f24c6458377b867226104380b099928cc488a340307e |
| go-fdo-server-debuginfo-1.0.1-2.el10_2.3.aarch64.rpm | SHA-256: ef5891e2f8c835e581767b5cc69e5c773b5ca42240777ffe56affb5f78df25fe |
| go-fdo-server-debugsource-1.0.1-2.el10_2.3.aarch64.rpm | SHA-256: ee66ff5d3ee815fa851205dad04f4e1b7e8234d94c35e2cf334f728f4041a23e |
| go-fdo-server-manufacturer-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: be4c2a1c5a5626e4aedde207ce12a147b6e8d53df5c68c6a20fbf44c2bc46a11 |
| go-fdo-server-owner-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: f794486d791619cf20c46a16e4e83790cbaa366d4abc30ea26f447856f48d15a |
| go-fdo-server-rendezvous-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: 81197c7bf494e72948e6fa5cc2cb6f79364b1732388963b3ee97c331455d5139 |
Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2
| SRPM | |
|---|---|
| go-fdo-server-1.0.1-2.el10_2.3.src.rpm | SHA-256: 9d4c1e7ec846a5b3f39f26ded711c441b5104737a6c22c21d35e6d2448290b31 |
| x86_64 | |
| go-fdo-server-1.0.1-2.el10_2.3.x86_64.rpm | SHA-256: 38c68e3d32727695b7e87f72ae6cc0f6aafa401899c1f80046570d13a7b9d5d9 |
| go-fdo-server-debuginfo-1.0.1-2.el10_2.3.x86_64.rpm | SHA-256: 1d169df3d8d453f18068bd6a7c933ed3e7cf5f610886bc49fe7b6a7e6f29cfab |
| go-fdo-server-debugsource-1.0.1-2.el10_2.3.x86_64.rpm | SHA-256: 128983197995f94390a6cc11b3dadd4759efaccf9e877d35fa83a7530ecd359e |
| go-fdo-server-manufacturer-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: be4c2a1c5a5626e4aedde207ce12a147b6e8d53df5c68c6a20fbf44c2bc46a11 |
| go-fdo-server-owner-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: f794486d791619cf20c46a16e4e83790cbaa366d4abc30ea26f447856f48d15a |
| go-fdo-server-rendezvous-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: 81197c7bf494e72948e6fa5cc2cb6f79364b1732388963b3ee97c331455d5139 |
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2
| SRPM | |
|---|---|
| go-fdo-server-1.0.1-2.el10_2.3.src.rpm | SHA-256: 9d4c1e7ec846a5b3f39f26ded711c441b5104737a6c22c21d35e6d2448290b31 |
| x86_64 | |
| go-fdo-server-1.0.1-2.el10_2.3.x86_64.rpm | SHA-256: 38c68e3d32727695b7e87f72ae6cc0f6aafa401899c1f80046570d13a7b9d5d9 |
| go-fdo-server-debuginfo-1.0.1-2.el10_2.3.x86_64.rpm | SHA-256: 1d169df3d8d453f18068bd6a7c933ed3e7cf5f610886bc49fe7b6a7e6f29cfab |
| go-fdo-server-debugsource-1.0.1-2.el10_2.3.x86_64.rpm | SHA-256: 128983197995f94390a6cc11b3dadd4759efaccf9e877d35fa83a7530ecd359e |
| go-fdo-server-manufacturer-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: be4c2a1c5a5626e4aedde207ce12a147b6e8d53df5c68c6a20fbf44c2bc46a11 |
| go-fdo-server-owner-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: f794486d791619cf20c46a16e4e83790cbaa366d4abc30ea26f447856f48d15a |
| go-fdo-server-rendezvous-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: 81197c7bf494e72948e6fa5cc2cb6f79364b1732388963b3ee97c331455d5139 |
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2
| SRPM | |
|---|---|
| go-fdo-server-1.0.1-2.el10_2.3.src.rpm | SHA-256: 9d4c1e7ec846a5b3f39f26ded711c441b5104737a6c22c21d35e6d2448290b31 |
| aarch64 | |
| go-fdo-server-1.0.1-2.el10_2.3.aarch64.rpm | SHA-256: 89376a25f3ad00c132d5f24c6458377b867226104380b099928cc488a340307e |
| go-fdo-server-debuginfo-1.0.1-2.el10_2.3.aarch64.rpm | SHA-256: ef5891e2f8c835e581767b5cc69e5c773b5ca42240777ffe56affb5f78df25fe |
| go-fdo-server-debugsource-1.0.1-2.el10_2.3.aarch64.rpm | SHA-256: ee66ff5d3ee815fa851205dad04f4e1b7e8234d94c35e2cf334f728f4041a23e |
| go-fdo-server-manufacturer-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: be4c2a1c5a5626e4aedde207ce12a147b6e8d53df5c68c6a20fbf44c2bc46a11 |
| go-fdo-server-owner-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: f794486d791619cf20c46a16e4e83790cbaa366d4abc30ea26f447856f48d15a |
| go-fdo-server-rendezvous-1.0.1-2.el10_2.3.noarch.rpm | SHA-256: 81197c7bf494e72948e6fa5cc2cb6f79364b1732388963b3ee97c331455d5139 |
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