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CVE-2026-116734

flatcc through 0.6.4 Out-of-Bounds Read via verifier check_header

flatcc through 0.6.4 contains an integer overflow vulnerability in the check_header function of the FlatBuffers verifier because its overflow guard is dead code. On 32-bit builds, attackers can supply a crafted buffer offset that wraps the bounds check, causing an out-of-bounds read before the buffer and crashing the process.

CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed
Vendors
Dvidelabs Flatcc Project
Products
Flatcc Flatcc
CVE-2026-116840

llama.cpp b5854 before b11275 Integer Overflow in gguf_init_from_reader

llama.cpp b5854 before b11275 contains an integer overflow vulnerability in gguf_init_from_reader that bypasses the CVE-2025-53630 size check when padding near-SIZE_MAX tensor sizes. Attackers can supply a crafted GGUF file whose tensor size pads to zero, causing an undersized data blob and out-of-bounds reads by consumers.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Ggml Ggml-org
Products
Llama.cpp Llama.cpp
CVE-2026-110264

Integer Overflow or Wraparound in GitLab

An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before 18.11.13, 19.0 before 19.0.10, 19.1 before 19.1.9, 19.2 before 19.2.9, 19.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server due to integer overflow when compiling a specially crafted regular expression.

CVSS 3.1 · 10 Critical EPSS 1.3% KEV · Not listed
Vendors
Gitlab
Products
Gitlab
CVE-2026-63925

macsec: fix replay protection at XPN lower-PN wrap

In the Linux kernel, the following vulnerability has been resolved: macsec: fix replay protection at XPN lower-PN wrap In macsec_post_decrypt(), when pn is U32_MAX, pn + 1 overflows u32 to 0 and the first branch never fires. If next_pn_halves.lower is also in the upper half, pn_same_half(pn, lower) is true and the XPN else-if does not fire either, leaving next_pn_halves unchanged. An attacker that captures the legitimate frame carrying pn == 0xFFFFFFFF on an XPN association can then replay it indefinitely, since lowest_pn never rises above the captured pn and macsec_decrypt() reconstructs the same IV. Extend the XPN else-if to also fire when pn + 1 wraps to 0, so receipt of pn == U32_MAX advances next_pn_halves to (upper + 1, 0).

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Linux
Products
Linux Kernel
CVE-2026-49206

rapidcsv: Integer overflow in iterator arithmetic causes out-of-bounds access

rapidcsv is a C++ CSV parser library. Prior to 8.99, RemoveColumn, InsertColumn, RemoveRow, InsertRow, and GetColumnNames converted size_t indexes to int before adding them to std::vector iterators. On 64-bit systems, in a CSV matrix dimension containing more than 2^31 elements, an index above INT_MAX could wrap to a negative iterator offset and point before the start of the vector, causing undefined behavior, heap memory corruption, or a crash. Triggering the issue requires an extremely large in-memory document, requiring tens of gigabytes of memory at minimum, so typical CSV documents are not practically affected. This issue is fixed in version 8.99.

CVSS 3.1 · 2.9 Low EPSS < 1% KEV · Not listed
Vendors
D99kris
Products
Rapidcsv
CVE-2026-63893

thunderbolt: property: Reject u32 wrap in tb_property_entry_valid()

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Reject u32 wrap in tb_property_entry_valid() entry->value is u32 and entry->length is u16; the sum is performed in u32 and wraps. A malicious XDomain peer can pick value = 0xffffff00, length = 0x100 so the sum 0x100000000 wraps to 0 and passes the > block_len check. tb_property_parse() then passes entry->value to parse_dwdata() as a dword offset into the property block, reading attacker-directed memory far past the allocation. For TEXT-typed entries with the "deviceid" or "vendorid" keys this lands in xd->device_name / xd->vendor_name and is readable back via the per-XDomain device_name / vendor_name sysfs attributes; the leak is NUL-bounded (kstrdup() stops at the first zero byte) and untargeted (the attacker picks a delta, not an absolute address). DATA-typed entries are parsed into property->value.data but not generically surfaced to userspace. Use check_add_overflow() so a wrapped sum is rejected.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Linux
Products
Linux Kernel
CVE-2026-63881

drm/amdkfd: fix a vulnerability of integer overflow in kfd debugger

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix a vulnerability of integer overflow in kfd debugger get_queue_ids() computes array_size = num_queues * sizeof(uint32_t), which could overflow on 32-bit size_t build. using array_size() instead, it saturates to SIZE_MAX on overflow. (cherry picked from commit 2d57a0475f085c08b49312dfd8edcb461845f285)

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux
Products
Linux Kernel
CVE-2026-63869

wifi: mac80211: limit injected antenna index in ieee80211_parse_tx_radiotap

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: limit injected antenna index in ieee80211_parse_tx_radiotap When parsing the radiotap header of an injected frame, ieee80211_parse_tx_radiotap() uses the IEEE80211_RADIOTAP_ANTENNA value directly as a shift count: info->control.antennas |= BIT(*iterator.this_arg); *iterator.this_arg is an 8-bit value taken straight from the frame supplied by userspace, so BIT() can be asked to shift by up to 255. That is undefined behaviour on the unsigned long and is reported by UBSAN: UBSAN: shift-out-of-bounds in net/mac80211/tx.c:2174:30 shift exponent 235 is too large for 64-bit type 'unsigned long' Call Trace: ieee80211_parse_tx_radiotap+0xadb/0x1950 net/mac80211/tx.c:2174 ieee80211_monitor_start_xmit+0xb1f/0x1250 net/mac80211/tx.c:2451 ... packet_sendmsg+0x3eb6/0x50f0 net/packet/af_packet.c:3109 info->control.antennas is a 2-bit bitmap (u8 antennas:2), so only antenna indices 0 and 1 can ever be represented. Ignore any larger value instead of shifting out of bounds.

CVSS 3.1 · 7.6 High EPSS < 1% KEV · Not listed
Vendors
Linux
Products
Linux Kernel
CVE-2026-115889

Wasmtime: Bit-packing in Cranelift compiler causes silent overflow and miscompilation

Wasmtime is a runtime for WebAssembly. Prior to 36.0.19 and 43.0.0, the Cranelift compiler backend bit-packs SSA value indices in a way that can silently overflow in release builds when compiling a sufficiently large or specially crafted Wasm function with many SSA values. The overflow can make Cranelift reference incorrect IR values, causing arbitrary miscompilation, type confusion, and other attacker-controlled effects that may escape the Wasm sandbox on any architecture using the default Cranelift backend. This issue is fixed in versions 36.0.19 and 43.0.0.

CVSS 3.1 · 9.9 Critical EPSS < 1% KEV · Not listed
Vendors
Bytecodealliance
Products
Wasmtime
CVE-2026-111074

JITServer: Pre-authentication remote Denial of Service via integer overflow infinite loop in MessageBuffer::computeRequiredCapacity()

In Eclipse OpenJ9 versions prior to 0.63.0, the JITServer component is vulnerable to a pre-authentication remote denial of service. When processing the initial 4-byte length field of an incoming TCP connection, an integer overflow in `MessageBuffer::computeRequiredCapacity()` causes the receiving compilation worker thread to enter an infinite loop consuming ~100% CPU. An unauthenticated remote attacker can exploit this by opening a small number of crafted TCP connections to exhaust the entire worker thread pool, silently halting compilation services for all connected client JVMs.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Eclipse
Products
Eclipse Openj9
CVE-2026-103634

Apache DataSketches: datasketches-cpp: Out-of-bounds read and write in Count-Min sketch deserialization allows memory corruption via a crafted sketch

Out-of-bounds read and write in the Count-Min sketch deserialization of Apache DataSketches C++ (repo: datasketches-cpp). count_min_sketch::deserialize() did not include the preamble in its input size check, so a truncated sketch could cause a read of up to 16 bytes past the end of the input. In addition, the table size was computed from the serialized number of buckets and number of hash functions in 32-bit arithmetic. A crafted sketch could make it wrap to zero, so that the sketch deserialized with an empty table, and later updates and estimate queries read and wrote outside the heap allocation. This can corrupt heap memory, causing a crash and potentially enabling further exploitation. This issue affects Apache DataSketches C++: from 4.1.0 before 5.3.0. Only applications that deserialize Count-Min sketches from untrusted sources are affected. Users are recommended to upgrade to version 5.3.0, which fixes this issue.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Datasketches
CVE-2026-111974

GiveWP < 4.19.0.1 - Unauthenticated Donation Amount Restriction Bypass via Currency

The GiveWP WordPress plugin before 4.19.0.1 does not restrict the currency of a donation to the one the site or form accepts, while comparing its amount limits as bare numbers, allowing unauthenticated users to make donations below a form's configured minimum or fixed amount.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Wordpress-extensions
Products
Givewp
CVE-2026-69242

libvips: Integer overflow leading to heap buffer overflow leading to possible attacker-controlled mmap-resident write

libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, a crafted many-band TIFF processed through VipsForeignLoadTiff can evade scanline validation in libvips/iofuncs/image.c and cause an integer overflow in vips_image_sanity. The resulting buffer-region calculation can access attacker-controlled negative offsets in mmap-resident allocations, allowing reads or writes of other image data, possible data disclosure through uncompressed .v output, and likely process crashes. Remote code execution has not been demonstrated but cannot be ruled out. This issue is fixed in version 8.18.3.

CVSS 4.0 · 8.4 High EPSS < 1% KEV · Not listed
Vendors
Libvips
Products
Libvips
CVE-2026-16834

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to an integer underflow.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Aix Powervm Vios Vios
CVE-2026-98902

md/raid5: let stripe batch bm_seq comparison wrap-safe

In the Linux kernel, the following vulnerability has been resolved: md/raid5: let stripe batch bm_seq comparison wrap-safe Once the 32-bit seq wraps, a newer bm_seq can look smaller than old, so .. covert to wrap-safe calculate way.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Vendors
Linux
Products
Linux Linux Kernel