CVE-2025-59824: low-severity vulnerability in siderolabs omni
Omni Wireguard SideroLink potential escape
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 0.5epss 0.2%
Omni manages Kubernetes on bare metal, virtual machines, or in a cloud. Prior to version 0.48.0, Omni Wireguard SideroLink has the potential to escape. Omni and each Talos machine establish a peer-to-peer (P2P) SideroLink connection using WireGuard to mutually authenticate and authorize access. The WireGuard interface on Omni is configured to ensure that the source IP address of an incoming packet matches the IPv6 address assigned to the Talos peer. However, it performs no validation on the packet's destination address. The Talos end of the SideroLink connection cannot be considered a trusted environment. Workloads running on Kubernetes, especially those configured with host networking, could gain direct access to this link. Therefore, a malicious workload could theoretically send arbitrary packets over the SideroLink interface. This issue has been patched in version 0.48.0.
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U
Affected products
siderolabs · omniRelated CVEs — siderolabs omni
In the same product, most dangerous first.
CVE-2025-59836MEDIUMOmni is Vulnerable to DoS via Empty Create/Update Resource RequestsEPSS 0.6%CVE-2026-45723LOWOmni: Operator can traverse image-factory API paths via unsanitized `talos_version` in CreateSchematicEPSS 0.5%CVE-2025-61688HIGHOmni leaks information via the APIEPSS 0.3%CVE-2026-45720HIGHOmni: TOCTOU race condition allows multiple concurrent uses of a single-use SAML session tokenEPSS 0.1%CVE-2026-45726HIGHOmni: Reader-level users can retrieve imported cluster CA keys via ResourceServiceEPSS 0.1%