CVE-2026-66276

Apache Qpid Proton-J: Unbounded disposition range handling can lead to denial of service

An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, leading to denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Apache

Products

Qpid Proton-j

CVE-2026-68077

Apache Qpid Broker-J: Unbounded disposition range handling can lead to denial of service

An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, leading to denial of service. This issue affects Apache Qpid Broker-J: through 10.0.1. Users are recommended to upgrade to version 10.1.0, which fixes the issue.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Apache

Products

Qpid Broker-j

CVE-2026-11972

tarfile opened in streaming mode mishandles EOF

When using the "tarfile" module with a file opened in "streaming mode" (mode="r|") the tarfile module did not properly handle EOF, making archive parsing take exponentially longer.

CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed

Vendors

Python

Products

Cpython

CVE-2024-46862

ASoC: Intel: soc-acpi-intel-mtl-match: add missing empty item

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: soc-acpi-intel-mtl-match: add missing empty item There is no links_num in struct snd_soc_acpi_mach {}, and we test !link->num_adr as a condition to end the loop in hda_sdw_machine_select(). So an empty item in struct snd_soc_acpi_link_adr array is required.

CVSS 3.1 · 8 High EPSS < 1% KEV · Not listed

Vendors

Linux

Products

Linux Kernel

CVE-2026-7260

Stack overflow in phar with circular symlinks

Circular symbolic links in phar archives could lead to unbounded recursion, exhausting the C stack and crashing the PHP process, in PHP versions from 8.2.* before 8.2.33, from 8.3.* before 8.3.33, from 8.4.* before 8.4.24, and from 8.5.* before 8.5.9.

CVSS 4.0 · 5.4 Medium EPSS < 1% KEV · Not listed

Vendors

Php Php Group

Products

Php Php

CVE-2026-55731

Loytec LINX firmware: Unchecked input for loop condition in the SNMP agent

Unchecked input for loop condition (CWE-606) in the SNMP agent in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows an unauthenticated remote attacker to cause persistent denial of service (CPU exhaustion) via a crafted SNMP GETNEXT request with a large OID component.

CVSS 4.0 · 6.6 Medium EPSS < 1% KEV · Not listed

Vendors

Loytec

Products

L-dali L-gate L-inx and 5 more

CVE-2026-59869

js-yaml: YAML merge-key chains can force quadratic CPU consumption

js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 before 3.15.0 and from 4.0.0 before 4.3.0, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each mapping merges the previous one. This issue is fixed in versions 3.15.0 and 4.3.0.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Nodeca Redhat

Products

Js-yaml Hummingbird

CVE-2026-59874

node-tar: Negative tar entry size causes infinite loop in archive replace

node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, tar.replace accepts a checksum-valid tar header with a negative base-256 encoded entry size, causing the archive scanner to make no progress while repeatedly parsing the same header. This issue is fixed in version 7.5.18.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed

Vendors

Isaacs

Products

Tar

CVE-2026-59928

Mistune block_parser: quadratic-time parsing on long lists of repeated reference-link definitions

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, a Markdown document containing many repeated or distinct reference-link definitions causes quadratic work in src/mistune/block_parser.py and the ref_links environment dictionary handling, allowing denial of service through CPU exhaustion. This issue is fixed in version 3.3.0.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Lepture Mistune Project

Products

Mistune Mistune

CVE-2026-55206

py7zr: O(n^2) algorithmic complexity DoS in PackInfo._read()

py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption and decryption. Prior to 1.1.3, PackInfo._read() in archiveinfo.py used an O(n^2) cumulative sum pattern for attacker-controlled numstreams values parsed from archive headers, allowing a crafted .7z archive to cause excessive CPU consumption during SevenZipFile.init() before extraction. This issue is fixed in version 1.1.3.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed

Vendors

Miurahr

Products

Py7zr

CVE-2026-15172

Unchecked Input for Loop Condition in Wireshark

FMP/NOTIFY protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Wireshark

Products

Wireshark

CVE-2026-48712

protobufjs: Denial of service through unbounded Any expansion during JSON conversion

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.6.1 and 8.4.1, protobufjs could recurse without a depth limit while converting decoded messages to plain objects or JSON. This affected generated toObject() conversion and the custom google.protobuf.Any JSON conversion path. A crafted protobuf binary payload containing deeply nested Any values could cause the JavaScript call stack to be exhausted during conversion to JSON. This vulnerability is fixed in 7.6.1 and 8.4.1.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Protobuf Protobufjs Project

Products

Protobuf Protobufjs

CVE-2026-54269

protobufjs: Schema-derived names can shadow runtime-significant properties

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 8.6.0 and 7.6.3, protobufjs accepted certain schema-derived names that could collide with properties used by protobufjs runtime helpers. The known affected names are fields named hasOwnProperty, field or oneof names such as $type when loaded through protobufjs JSON/reflection descriptors, and service methods whose generated helper name is rpcCall. When affected message or service types were used, protobufjs could read schema-controlled data where it expected an own-property helper, reflected type metadata, or the base RPC helper. This could cause deterministic exceptions or recursive calls in affected decode post-checks, verification, object conversion, reflected JSON serialization, or protobufjs RPC helper invocation. This vulnerability is fixed in 8.6.0 and 7.6.3.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Protobuf Protobufjs Project

Products

Protobuf Protobufjs Protobufjs-cli

CVE-2025-61024

virtuoso-opensource: virtuoso-opensource: Denial of Service via crafted SQL statements in sqlo_try_in_loop

An issue in the sqlo_try_in_loop component of openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Openlink

Products

Virtuoso-opensource

CVE-2026-46314

drm/v3d: Reject empty multisync extension to prevent infinite loop

In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Reject empty multisync extension to prevent infinite loop v3d_get_extensions() walks a userspace-provided singly-linked list of ioctl extensions without any bound on the chain length. A local user can craft a self-referential extension (ext->next == &ext) with zero in_sync_count and out_sync_count, which bypasses the existing duplicate- extension guard: if (se->in_sync_count || se->out_sync_count) return -EINVAL; The guard never fires because v3d_get_multisync_post_deps() returns immediately when count is zero, leaving both fields at zero on every iteration. The result is an infinite loop in kernel context, blocking the calling thread and pegging a CPU core indefinitely. Fix this by rejecting a multisync extension where both in_sync_count and out_sync_count are zero in v3d_get_multisync_submit_deps(). An empty multisync carries no synchronization information and serves no useful purpose, so returning -EINVAL for such an extension is the correct defense against this attack vector.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Linux

Products

Linux Kernel

CVE-2026-55199

libssh2 - Pre-Authentication DoS via SSH_MSG_EXT_INFO Handler

libssh2 through 1.11.1, fixed in commit 1762685, contains a pre-authentication denial of service vulnerability in the SSH_MSG_EXT_INFO handler in src/packet.c that allows a malicious SSH server to cause a client CPU exhaustion loop by sending a crafted extension count value. A malicious server can set nr_extensions to 0xFFFFFFFF during key exchange, causing the client to spin in a tight CPU loop for over 60 seconds because return values from _libssh2_get_string() are unchecked and the session timeout does not apply to CPU-bound loops.

CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed

Vendors

Libssh2

Products

Libssh2

CVE-2026-10143

kafka-python prior to 2.3.2 DoS via SCRAM Iteration Count in scram.py

kafka-python prior to 2.3.2 contains a denial-of-service vulnerability in SCRAM authentication handling that allows a malicious or machine-in-the-middle broker to freeze the client event loop by supplying an excessively large iteration count. In scram.py, ScramClient.process_server_first_message() passes the broker-controlled SCRAM iteration count directly to hashlib.pbkdf2_hmac() without validation, blocking producer sends, consumer polls, admin operations, and heartbeats, which can cause consumer group eviction and repeated reconnect failures.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed

Vendors

Dana Powers Dpkp

Products

Kafka-python Kafka-python

CVE-2026-41986

File system logic bypass leading to availability impact in HarmonyOS

Logic bypass vulnerability in the file system. Impact: Successful exploitation of this vulnerability may affect availability.

CVSS 3.1 · 2.4 Low EPSS < 1% KEV · Not listed

Vendors

Huawei

Products

Harmonyos

CVE-2026-5950

Unbounded resend loop in BIND 9 resolver

An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling, enabling a remote unauthenticated attacker to cause severe resource exhaustion by sending queries that trigger specific retry conditions. This issue affects BIND 9 versions 9.18.36 through 9.18.48, 9.20.8 through 9.20.22, 9.21.7 through 9.21.21, 9.18.36-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Isc

Products

Bind

CVE-2026-42245

net-imap: Quadratic complexity when reading response literals

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.4.24, 0.5.14, and 0.6.4, Net::IMAP::ResponseReader has quadratic time complexity when reading large responses containing many string literals. A hostile server can send responses which are crafted to exhaust the client's CPU for a denial of service attack. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4.

CVSS 4.0 · 2.3 Low EPSS < 1% KEV · Not listed

Vendors

Ruby-lang

Products

Net::imap Net\