Summary
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):
* crypto/tls: Unexpected session resumption in crypto/tls (CVE-2025-68121)
* crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281)
* golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root (CVE-2026-32282)
* crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)
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.
Fixed packages 5
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 10 | go-fdo-client | 1.0.0-4.el10_2 |
| AlmaLinux · 10 | go-fdo-server | 1.0.1-2.el10_2 |
| AlmaLinux · 10 | go-fdo-server-manufacturer | 1.0.1-2.el10_2 |
| AlmaLinux · 10 | go-fdo-server-owner | 1.0.1-2.el10_2 |
| AlmaLinux · 10 | go-fdo-server-rendezvous | 1.0.1-2.el10_2 |
Vulnerabilities 4
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Critical 9.1
Unexpected session resumption in crypto/tls
During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user ca…
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High 7.5
Unexpected work during chain building in crypto/x509
During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 an…
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High 7.5
Inefficient policy validation in crypto/x509
Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service. This only affects validation of otherwise trusted certificate chain…
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Medium 6.4
TOCTOU permits root escape on Linux via Root.Chmod in os in internal/syscall/unix
On Linux, if the target of Root.Chmod is replaced with a symlink while the chmod operation is in progress, Chmod can operate on the target of the symlink, even when the target lies outside the root. The Linux fchmodat syscall silently ignores the AT_SYMLINK_N…
References
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report
https://access.redhat.com/security/cve/CVE-2025-68121
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report
https://access.redhat.com/security/cve/CVE-2026-32280
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report
https://access.redhat.com/security/cve/CVE-2026-32281
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report
https://access.redhat.com/security/cve/CVE-2026-32282
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report
https://bugzilla.redhat.com/2437111
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report
https://bugzilla.redhat.com/2456333
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report
https://bugzilla.redhat.com/2456336
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report
https://bugzilla.redhat.com/2456339
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advisory
https://errata.almalinux.org/10/ALSA-2026-22141.html