DEBIAN-CVE-2026-39831

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Source
https://security-tracker.debian.org/tracker/CVE-2026-39831
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-39831.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-39831
Upstream
Published
2026-05-22T04:16:22Z
Modified
2026-09-01T16:06:41Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

The Verify() method for FIDO/U2F security key types (sk-ecdsa-sha2-nistp256@openssh.com, sk-ssh-ed25519@openssh.com) did not check the User Presence flag. Signatures generated without physical touch were accepted, allowing unattended use of a hardware security key. To restore the previous behavior, return a "no-touch-required" extension in Permissions.Extensions from PublicKeyCallback.

References

Affected packages

Debian:12 / golang-go.crypto

Package

Name
golang-go.crypto
Purl
pkg:deb/debian/golang-go.crypto?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:0.*
1:0.4.0-1
1:0.10.0-1
1:0.12.0-1
1:0.13.0-1
1:0.14.0-1
1:0.16.0-1
1:0.17.0-1
1:0.18.0-1
1:0.19.0-1
1:0.21.0-1
1:0.22.0-1
1:0.23.0-1
1:0.24.0-1
1:0.24.0-2
1:0.25.0-1~bpo12+1
1:0.25.0-1
1:0.33.0-1~exp1
1:0.36.0-1~exp1
1:0.41.0-1~exp1
1:0.42.0-1~exp1
1:0.42.0-1
1:0.42.0-2
1:0.42.0-3
1:0.42.0-4
1:0.43.0-1
1:0.43.0-2
1:0.45.0-1
1:0.46.0-1
1:0.47.0-1
1:0.50.0-1
1:0.52.0-1~bpo13+1
1:0.52.0-1
1:0.53.0-1
1:0.54.0-1
1:0.55.0-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-39831.json"

Debian:13 / golang-go.crypto

Package

Name
golang-go.crypto
Purl
pkg:deb/debian/golang-go.crypto?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:0.*
1:0.25.0-1
1:0.33.0-1~exp1
1:0.36.0-1~exp1
1:0.41.0-1~exp1
1:0.42.0-1~exp1
1:0.42.0-1
1:0.42.0-2
1:0.42.0-3
1:0.42.0-4
1:0.43.0-1
1:0.43.0-2
1:0.45.0-1
1:0.46.0-1
1:0.47.0-1
1:0.50.0-1
1:0.52.0-1~bpo13+1
1:0.52.0-1
1:0.53.0-1
1:0.54.0-1
1:0.55.0-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-39831.json"

Debian:14 / golang-go.crypto

Package

Name
golang-go.crypto
Purl
pkg:deb/debian/golang-go.crypto?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:0.52.0-1

Affected versions

1:0.*
1:0.25.0-1
1:0.33.0-1~exp1
1:0.36.0-1~exp1
1:0.41.0-1~exp1
1:0.42.0-1~exp1
1:0.42.0-1
1:0.42.0-2
1:0.42.0-3
1:0.42.0-4
1:0.43.0-1
1:0.43.0-2
1:0.45.0-1
1:0.46.0-1
1:0.47.0-1
1:0.50.0-1
1:0.52.0-1~bpo13+1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-39831.json"