CVE-2026-89957

CVE-2026-89957 affects the Linux kernel s390 vfio-ap driver. In vfio_ap_mdev_hot_unplug_cfg(), the return value of bitmap_andnot() is used to decide whether the guest APCB needs updating. When the last AP adapter or domain assigned to an mdev is removed, the resulting empty bitmap causes bitmap_a...

EUVD-2026-80557

In the Linux kernel, the following vulnerability has been resolved: s390/vfio-ap: Fix hot-unplug skipped when last AP adapter or domain removed The vfioapmdevhotunplugcfg function uses the return value of bitmapandnot to determine whether the guest APCB needs to be updated. However, bitmapandnot...

CVE-2026-89932 KVM: nVMX: Always flush vpid02 on first use

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Always flush vpid02 on first use Make sure vpid02 is always flushed on first use by setting lastvpid=0 when allocating vpid02. nestedvmxtransitiontlbflush will always detect a VPID change on first VM-Enter after VMXON,...

EUVD-2026-80532

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Always flush vpid02 on first use Make sure vpid02 is always flushed on first use by setting lastvpid=0 when allocating vpid02. nestedvmxtransitiontlbflush will always detect a VPID change on first VM-Enter after VMXON,...

CVE-2026-89932

CVE-2026-89932 affects the Linux kernel's KVM nested VMX (nVMX) subsystem. The root cause is that the last_vpid variable is not reset to 0 when the L2 VPID (vpid02) is freed on VMXOFF. If KVM subsequently reuses a VPID that still has stale TLB entries on the physical CPU from a previous vCPU or a...

CVE-2026-89930 KVM: nVMX: Service local TLB flushes on failed nested VM-Enter

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Service local TLB flushes on failed nested VM-Enter KVM services local TLB flushes on "full" nested VM-Exits through nestedvmxvmexit, but not if a nested VM-Enter fails e.g. due to failed VMCS checks in...

EUVD-2026-80529

In the Linux kernel, the following vulnerability has been resolved: KVM: nVM: Ensure INVVPID is emulated on the correct physical CPU When emulating INVVPID, KVM executes INVVPID on the physical CPU using vpid02 instead of the L1 assigned VPID, after doing some validations on the operands. However...

CVE-2026-89916

CVE-2026-89916 is a race condition in the Linux kernel's KVM arm64 subsystem where VNCR TLB invalidation did not participate in the MMU invalidation retry mechanism. When one vCPU invalidates a page via TLBI S1E2 while another vCPU is concurrently faulting in the same page, the faulting vCPU can ...

CVE-2026-89906 LoongArch: BPF: Refactor jump offset calculation in tail call

In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Refactor jump offset calculation in tail call The old macro-based jmpoffset calculation derives the jump distance from a stale prior-pass code stride, which can lead to wrong branch offsets and soft lockups under...

EUVD-2026-80465

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers The FRU and I2C bsg handlers stage their transfer in a DMAPOOLSIZE 256-byte bounce buffer obtained from dmapoolalloc, which does not zero the allocation. They initialize...

CVE-2026-89865

CVE-2026-89865 affects the Linux kernel's qla2xxx SCSI driver (QLogic). The FRU and I2C bsg handlers stage transfers in a 256-byte DMA bounce buffer allocated via dma_pool_alloc() , which does not zero the memory. Only a small leading prefix is initialized (e.g., 36 bytes for a FRU version, 1 byt...

EUVD-2026-80173

A flaw was found in the first broker login flow of Keycloak. When a user confirms an account-linking request from a different browser, a temporary proof is created to validate the link. However, this proof is not properly cleared after the link is established or when the user later manually remov...

CVE-2026-85046-who-put-the-silverback-guerilla-in-the-wasm

CVE-2026-85046 Saw the other POC of this and I thought to myself this is such a nightmare to look at. So I went and simplified the POC and added a jump to your own wasm. Because wasm. Chrome 152.0.7977.75 can confuse object pointers with integers during sort. poc.js keeps a stale Wasm module...

Security Bulletin: IBM Watson Discovery for IBM Cloud Pak for Data affected by vulnerability in netty-transport-native-epoll

Summary IBM Watson Discovery for IBM Cloud Pak for Data affected by vulnerability in netty-transport-native-epoll Vulnerability Details CVEID:CVE-2026-42577 DESCRIPTION: Netty is an asynchronous, event-driven network application framework. From 4.2.0.Final to 4.2.13.Final , Netty's epoll transpor...

CVE-2026-55617

Hydro is a next-generation high-performance online judge platform. From 4.10.4 until 5.0.2, the session recreation logic in packages/hydrooj/src/service/layers/base.ts creates a replacement session token without deleting the previous token from the server-side session token store, so an old sid...

EUVD-2026-78768

Hydro is a next-generation high-performance online judge platform. From 4.10.4 until 5.0.2, the session recreation logic in packages/hydrooj/src/service/layers/base.ts creates a replacement session token without deleting the previous token from the server-side session token store, so an old sid...

CVE-2026-55617

Hydro (the hydrooj NPM package), a high-performance online judge platform, contains an insufficient session expiration vulnerability in its session recreation logic (packages/hydrooj/src/service/layers/base.ts). From 4.10.4 through 5.0.1 , a new session token is created without deleting the previ...

kernel: sctp: purge outqueue on stale COOKIE-ECHO handling

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP implementation. This vulnerability, a use-after-free, occurs when the system processes a Stale Cookie ERROR during the setup or reconfiguration of an SCTP association. A remote attacker could exploit this by sending...

CVE-2025-40271

CVE-2025-40271 — procreaddirde rb-tree UAF LPE Proof-of-concept for a local privilege escalation vulnerability in the Linux kernel proc filesystem. The bug is a use-after-free in procreaddirde caused by rberase without RBCLEARNODE, leaving stale red-black tree links that can be raced during...

CVE-2026-71206-PoC

CVE-2026-71206 — Shiori: JWT CheckToken Never Re-Validates Account State Product: go-shiori/shiori File: internal/domains/auth.go CWE: CWE-613 — Insufficient Session Expiration CVSS 3.1: AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L — 8.2 High CNA: Turan Security · CVE record Description Shiori's CheckToke...