CVE-2026-18500

CVE-2026-18500 concerns the @fastify/jwt plugin for Fastify. In versions before 10.2.2, a per-request key passed to request.jwtVerify({ key }) can be silently overridden by the plugin’s globally configured secret due to the option merge applying the global key last. This allows an ordinary authen...

CVE-2026-74577

CVE-2026-74577 applies to the Linux kernel’s MPLS netlink path. A construction of RTM_NEWROUTE replies for RTM_GETROUTE could leak an uninitialized byte from the rtmsg header when rtm_tos was not zeroed, due to missing initialization in mpls_getroute(); the code filled most fields but left rtm_to...

CVE-2026-74576

Summary of CVE-2026-74576 (Linux kernel) : The vulnerability stems from the slab allocator allowing unbounded recursion in the free path due to cycles formed when obj_exts arrays are allocated across KMALLOC_NORMAL caches. Specifically, slabs can form a cycle by allocating each other’s obj_exts a...

CVE-2026-74575

CVE-2026-74575 : The Linux kernel Thunderbolt XDomain use-after-free on disconnect has been addressed. The fix adds a new xd->removing flag protected by xd->lock and uses it in tb_xdomain_remove() to coordinate with queue_delayed_work() sites. This ensures proper serialization between the r...

CVE-2026-74574

CVE-2026-74574 affects the Linux kernel’s dmaengine idxd open path, where error paths in fdev setup could deadlock by dropping the file-device reference while wq->wq_lock is held and then re-acquiring it during release. The description explains that failed_dev_add/failed_dev_name paths drop re...

CVE-2026-74573

Concise summary: CVE-2026-74573 affects the Linux kernel IOMMU arm-smmu-v3-iommufd. The vulnerability arises when a vDEVICE is mapped to more than one stream: arm_vsmmu_vsid_to_sid() uses only master->streams[0], so guests with multiple streams may not invalidate all ATC/IOTLB entries; if ther...

CVE-2026-74572

CVE-2026-74572 affects the Linux kernel’s btrfs zoned feature, causing a deadlock between metadata writeback and transaction commit. When writing metadata extent buffers, btree_writepages() holds fs_info->zoned_meta_io_lock across the writeback loop, including calls to check_bg_is_active(). In...

CVE-2026-74571

CVE-2026-74571 affects the Linux kernel/btrfs. The issue occurs when mounting with rescue=ibadroots on a corrupted block group tree, leading to a NULL pointer dereference in btrfs_update_global_block_rsv. The root cause is that btrfs_read_roots() may leave a root pointer NULL while its on-disk fe...

CVE-2026-74570

CVE-2026-74570 is a Linux kernel vulnerability affecting NTFS runlist handling. The issue stems from unsafe/overflow-prone size calculations in runlist element counts used by ntfs_rl_realloc() and ntfs_rl_realloc_nofail(). A fix was implemented by adding a shared helper to safely convert runlist ...

CVE-2026-74569

CVE-2026-74569 affects the Linux kernel netfilter nf_conntrack_sip path. The issue stems from NAT rewrite delta handling in sip_help_tcp(), where diff/tdiff was stored in 16-bit fields and could overflow within large SIP messages, causing a read past the skb tail. The fix widens diff, tdiff, and ...

CVE-2026-74567

The CVE concerns the Linux kernel keys subsystem: a bug in keyring_get_key_chunk() causes an out-of-bounds read when decoding description-level chunks. The read pointer is advanced by level * sizeof(long) past the inline prefix, while only the prefix is bounds-checked, allowing a long enough key ...

CVE-2026-74568

CVE-2026-74568 (Linux kernel, KVM arm64 vgic) : A race between LPIs release and re-registration can occur when an LPI’s reference count drops to zero and the LPI entry is evicted from the VGIC LPI xarray, enabling a concurrent re-registration to overwrite or leak LPIs. The issue arises because th...

CVE-2026-74566

In CVE-2026-74566, the Linux kernel keyring subsystem has a data-ordering defect: keyring_get_key_chunk() loads a description into the index chunk with the low-address first, while keyring_diff_objects() defines the first differing bit from the low end and folds the absolute byte index into the l...

CVE-2026-74565

Consolidated sources describe CVE-2026-74565 affecting the Linux kernel netfilter nf_tables. The bug arises from a global rhltable for nft_object, enabling access to objects being disassembled from lookup paths across net namespaces and potentially causing use-after-free when nft_obj_destroy() re...

CVE-2026-74564

CVE-2026-74564 concerns Linux kernel netfilter xt_hashlimit, where the XT_HASHLIMIT_RATE_MATCH flag can cause uninitialized access to the burst field in the dsthash_ent union when two or more rules reference the same hashtable. A kernel fix updates the .checkentry path to require the RATE_MATCH m...

CVE-2026-74563

CVE-2026-74563 concerns the Linux kernel RDS TCP binding path. Ongoing code path in rds_tcp_laddr_check() looked up a scoped IPv6 interface with dev_get_by_index_rcu(), released the RCU read lock, and then passed the net_device into ipv6_chk_addr(). After rcu_read_unlock(), a concurrent RTM_DELLI...

CVE-2026-74562

The CVE-2026-74562 issue affects the Linux kernel nexthop code: fib6_check_nh_list() and __nexthop_replace_notify() walk the nh->f6i_list during an RTNL-serialized nexthop replace without holding nh->lock, while IPv6 RTM_NEWROUTE/RTM_DELROUTE can mutate that list without RTNL and race with ...

CVE-2026-74561

Summary: CVE-2026-74561 is a Linux kernel vulnerability where nh_rt_cache_flush walks an f6i_list without proper locking, racing with unlocked IPv6 route add/delete operations and freeing fib6_info. The fix migrates the sernum update to a broader netns scope by using rt_genid_bump_ipv6() instead ...

CVE-2026-74560

CVE-2026-74560 concerns the Linux kernel XDP stack, specifically the xsk_drop_skb() path for AF_XDP multi-buffer transmissions. The issue arises when an overflow path partially builds multi-fragment skbs, causing buffer addresses to be published incorrectly and leaving buffers untracked in usersp...

CVE-2026-74559

CVE-2026-74559 affects the Linux kernel XDP/AF_XDP path. The issue arises in the xsk_build_skb() flow where, on overflow of descriptors (or invalid descriptors in fragmented packets), the generic transmit path multi-buffer handling could mishandle descriptors. The fix introduces xdp_sock::drain_c...