go-ipld-prime: DAG-CBOR decoder unbounded memory allocation from CBOR headers

The DAG-CBOR decoder uses collection sizes declared in CBOR headers as Go preallocation hints for maps and lists. The decoder does not cap these size hints or account for their cost in its allocation budget, allowing small payloads to cause excessive memory allocation. A CBOR map or list header c...

PT-2026-30757

Name of the Vulnerable Software and Affected Versions go-ipld-prime versions prior to 0.22.0 Description go-ipld-prime’s DAG-CBOR decoder does not limit the size of preallocations for maps and lists based on CBOR headers, potentially leading to excessive memory allocation from small payloads...

Uncontrolled Recursion

Overview @stablelib/cbor is a CBOR encoder and decoder Affected versions of this package are vulnerable to Uncontrolled Recursion when decoding. An attacker can cause the application to crash or terminate unexpectedly by supplying a deeply nested, attacker-controlled CBOR payload that exhausts th...

Prototype Pollution

Overview @stablelib/cbor is a CBOR encoder and decoder Affected versions of this package are vulnerable to Prototype Pollution via the CBOR decoding process. An attacker can manipulate the prototype of decoded objects by supplying specially crafted map keys, such as proto, which can lead to...

SUSE CVE-2026-26209

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Versions prior to 5.9.0 are vulnerable to a Denial of Service DoS attack caused by uncontrolled recursion when decoding deeply nested CBOR structures. This vulnerability affects both the...

fido2-lib is vulnerable to DoS via cbor-extract heap buffer over-read in CBOR attestation parsing

Summary fido2-lib v3.x depends on cbor-x 1.6.0, which optionally pulls in cbor-extract C++ native addon. cbor-extract = 2.2.0 has a heap buffer over-read in extractStrings — a 5-byte CBOR payload crashes Node.js with SIGSEGV. No JS exception, no try/catch, process dead. The crash triggers during...

GHSA-G3QJ-J598-CXMQ fido2-lib is vulnerable to DoS via cbor-extract heap buffer over-read in CBOR attestation parsing

Summary fido2-lib v3.x depends on cbor-x 1.6.0, which optionally pulls in cbor-extract C++ native addon. cbor-extract = 2.2.0 has a heap buffer over-read in extractStrings — a 5-byte CBOR payload crashes Node.js with SIGSEGV. No JS exception, no try/catch, process dead. The crash triggers during...

EUVD-2026-14478

cbor2 has a Denial of Service via Uncontrolled Recursion in cbor2.loads...

GHSA-3C37-WWVX-H642 cbor2 has a Denial of Service via Uncontrolled Recursion in cbor2.loads

Summary - The cbor2 library is vulnerable to a Denial of Service DoS attack caused by uncontrolled recursion when decoding deeply nested CBOR structures. - This vulnerability affects both the pure Python implementation and the C extension cbor2. The C extension correctly uses Python's C-API for...

cbor2 has a Denial of Service via Uncontrolled Recursion in cbor2.loads

Summary - The cbor2 library is vulnerable to a Denial of Service DoS attack caused by uncontrolled recursion when decoding deeply nested CBOR structures. - This vulnerability affects both the pure Python implementation and the C extension cbor2. The C extension correctly uses Python's C-API for...

UBUNTU-CVE-2026-26209

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Versions prior to 5.9.0 are vulnerable to a Denial of Service DoS attack caused by uncontrolled recursion when decoding deeply nested CBOR structures. This vulnerability affects both the...

CVE-2026-26209

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Versions prior to 5.9.0 are vulnerable to a Denial of Service DoS attack caused by uncontrolled recursion when decoding deeply nested CBOR structures. This vulnerability affects both the...

CVE-2026-26209

The CVE-2026-26209 issue affects the Python library cbor2 (including the C extension _cbor2) prior to version 5.9.0. The root cause is uncontrolled recursion when decoding deeply nested CBOR structures, as the C extension relies on Python’s Py_EnterRecursiveCall rather than a data-driven depth li...

CVE-2026-26209

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Versions prior to 5.9.0 are vulnerable to a Denial of Service DoS attack caused by uncontrolled recursion when decoding deeply nested CBOR structures. This vulnerability affects both the...

cbor2 安全漏洞

cbor2 is a binary object representation serialization format encoding and decoding library developed by Alex Grönholm as an individual developer. Versions of cbor2 prior to 5.9.0 contained security vulnerabilities. These vulnerabilities stemmed from uncontrolled recursion when decoding deeply...

Amazon Linux 2023 : wireshark-cli, wireshark-devel (ALAS2023-2026-1450)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1450 advisory. MONGO dissector infinite loop in Wireshark 4.4.0 to 4.4.9 and 4.2.0 to 4.2.13 allows denial of service CVE-2025-11626 Kafka dissector crash in Wireshark 4.6.0 and 4.4.0 to 4.4.10 allows denial...

CVE-2020-24753

A memory corruption vulnerability in Objective Open CBOR Run-time oocborrt in versions before 2020-08-12 could allow an attacker to execute code via crafted Concise Binary Object Representation CBOR input to the cbor2json decoder. An uncaught error while decoding CBOR Major Type 3 text strings...

python311-cbor2-5.8.0-2.1 on GA media (moderate)

python311-cbor2-5.8.0-2.1 on GA media Announcement ID: openSUSE-SU-2026:10014-1 Rating: moderate Cross-References: CVE-2025-68131 CVSS scores: CVE-2025-68131 SUSE : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2025-68131 SUSE : 6.8...

GHSA-WCJ4-JW5J-44WH CBORDecoder reuse can leak shareable values across decode calls

Summary When a CBORDecoder instance is reused across multiple decode operations, values marked with the shareable tag 28 persist in memory and can be accessed by subsequent CBOR messages using the sharedref tag 29. This allows an attacker-controlled message to read data from previously decoded...

CBORDecoder reuse can leak shareable values across decode calls

Summary When a CBORDecoder instance is reused across multiple decode operations, values marked with the shareable tag 28 persist in memory and can be accessed by subsequent CBOR messages using the sharedref tag 29. This allows an attacker-controlled message to read data from previously decoded...