UBUNTU-CVE-2026-109425

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Source

https://ubuntu.com/security/CVE-2026-109425

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109425.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-109425

Upstream

CVE-2026-109425

Published

2026-10-12T20:17:00Z

Modified

2026-10-17T12:59:49Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Tink-go (tink-crypto/tink-go) through 2.8.0 contains an input-validation vulnerability where keyset.NewHandleWithNoSecrets() and ReadWithNoSecrets() skip the structural Validate() step before constructing a keyset.Handle, allowing malformed public or no-secret keysets that violate Tink's keyset invariants to be accepted. Attackers can supply a malformed keyset, such as one with an enabled public key lacking a valid primary key or a DESTROYED key with no KeyData, causing inconsistent downstream validation where functions like jwt.JWKSetFromPublicKeysetHandle() process the invalid handle and produce a JWK set, potentially misleading applications that rely on successful handle construction as proof of keyset integrity.

References

Affected packages

Ubuntu:26.10 / golang-github-tink-crypto-tink-go

Package

Name: golang-github-tink-crypto-tink-go
Purl: pkg:deb/ubuntu/golang-github-tink-crypto-tink-go?arch=source&distro=stonking

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.6.0-1

2.7.0-3

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "golang-github-tink-crypto-tink-go-dev",
            "binary_version":  "2.7.0-3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109425.json"

Ubuntu:26.04:LTS / golang-github-tink-crypto-tink-go