EUVD-2026-38827

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Do not use host-controlled page order in cleanup path When issuing an extended guest request SVMVMGEXITEXTGUESTREQUEST, getextreport allocates a buffer to retrieve a certificate blob from the host, keeping track ...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the ValidateArgumentType process. An attacker can gain unauthorized access to sensitive configuration details by sending unauthenticated requests to enumerate valid action binding IDs and their argument...

GHSA-F637-W7P2-M7FX OliveTin: ValidateArgumentType API Endpoint's Missing Authentication Allows Action and Argument Enumeration

Summary The ValidateArgumentType RPC endpoint in service/internal/api/api.go does not perform any authentication or authorization checks. Unlike all other data-returning API endpoints, it does not call auth.UserFromApiCall or checkDashboardAccess. When AuthRequireGuestsToLogin is enabled the...

CVE-2026-52959

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Do not use host-controlled page order in cleanup path When issuing an extended guest request SVMVMGEXITEXTGUESTREQUEST, getextreport allocates a buffer to retrieve a certificate blob from the host, keeping track ...

CVE-2026-52959

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Do not use host-controlled page order in cleanup path When issuing an extended guest request SVMVMGEXITEXTGUESTREQUEST, getextreport allocates a buffer to retrieve a certificate blob from the host, keeping track ...

CVE-2026-52969

In the Linux kernel, the following vulnerability has been resolved: KVM: Reject wrapped offset in kvmresetdirtygfn kvmresetdirtygfn guards the gfn range with if !memslot || offset + flsmask = memslot-npages return; but offset is u64 and the addition is unchecked. The check can be silently bypasse...

CVE-2026-52969

CVE-2026-52969 affects the Linux kernel KVM component. The vulnerability stems from an unchecked u64 addition in kvm_reset_dirty_gfn(), where the guard if (!memslot || (offset + __fls(mask)) >= memslot->npages) can be bypassed due to offset being 64‑bit. This can allow an out-of-bounds load...

CVE-2026-52959

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Do not use host-controlled page order in cleanup path When issuing an extended guest request SVMVMGEXITEXTGUESTREQUEST, getextreport allocates a buffer to retrieve a certificate blob from the host, keeping track ...

CVE-2026-52959

The CVE-2026-52959 issue affects the Linux kernel SEV guest module. During an extended guest request (SVM_VMGEXIT_EXT_GUEST_REQUEST), get_ext_report() allocates a buffer for a host certificate blob and stores its size in report_req->certs_len. The host may return SNP_GUEST_VMM_ERR_INVALID_LEN ...

CVE-2026-52959 virt: sev-guest: Do not use host-controlled page order in cleanup path

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Do not use host-controlled page order in cleanup path When issuing an extended guest request SVMVMGEXITEXTGUESTREQUEST, getextreport allocates a buffer to retrieve a certificate blob from the host, keeping track ...

CVE-2026-52959 virt: sev-guest: Do not use host-controlled page order in cleanup path

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Do not use host-controlled page order in cleanup path When issuing an extended guest request SVMVMGEXITEXTGUESTREQUEST, getextreport allocates a buffer to retrieve a certificate blob from the host, keeping track ...

SUSE-SU-2026:22423-1 Security update for google-guest-agent

This update for google-guest-agent fixes the following issues - CVE-2026-33186: google.golang.org/grpc: authorization bypass due to improper validation of the HTTP/2 :path pseudo- header bsc1260264. - CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allo...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: KVM: Disallow toggling KVMMEMGUESTMEMFD on an existing memslot Reject attempts to disable KVMMEMGUESTMEMFD on a memslot that was initially created with a guestmemfd binding, as KVM doesn't support toggling KVMMEMGUESTMEMFD on...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Do not skip unrelated instructions if INT3/INTO is replaced When re-injecting a soft interrupt from an INT3, INT0, or select INTn instruction, discard the exception and retry the instruction if the code stream changes...

SUSE-SU-2026:22442-1 Security update for google-guest-agent

This update for google-guest-agent fixes the following issues - CVE-2026-33186: google.golang.org/grpc: authorization bypass due to improper validation of the HTTP/2 :path pseudo- header bsc1260264. - CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allo...

Security update for google-guest-agent

This update for google-guest-agent fixes the following issues Security issues: CVE-2026-39821: Update golang.org/x/net/idna dependency bsc1266603. CVE-2026-39827: Update golang.org/x/crypto dependency bsc1266171. CVE-2026-39828: Update golang.org/x/crypto dependency bsc1266171. CVE-2026-39829:...

SUSE-SU-2026:2612-1 Security update for google-guest-agent

This update for google-guest-agent fixes the following issues Security issues: - CVE-2026-39821: Update golang.org/x/net/idna dependency bsc1266603. - CVE-2026-39827: Update golang.org/x/crypto dependency bsc1266171. - CVE-2026-39828: Update golang.org/x/crypto dependency bsc1266171. -...

UBUNTU-CVE-2026-9539

An out-of-bounds heap read and integer underflow in the TCP urgent data handling sosendoob in freedesktop.org libslirp version before v4.9.2 on hypervisor host environments e.g., QEMU allows a privileged guest VM attacker root or CAPNETRAW to leak gigabytes of sensitive host-process heap memory v...

CVE-2026-9539

An out-of-bounds heap read and integer underflow in the TCP urgent data handling sosendoob in freedesktop.org libslirp version before v4.9.2 on hypervisor host environments e.g., QEMU allows a privileged guest VM attacker root or CAPNETRAW to leak gigabytes of sensitive host-process heap memory v...

CVE-2026-9539

CVE-2026-9539 affects freedesktop.org libslirp (prior to v4.9.2) used on hypervisor host environments (e.g., QEMU). A vulnerability in the TCP urgent data handling (sosendoob) can cause an out-of-bounds heap read and integer underflow, enabling a privileged guest VM attacker (root or CAP_NET_RAW)...