Predicting 2026

Welcome to this week's edition of the Threat Source newsletter. It's become traditional at this time of year to make predictions about cybersecurity for the coming year. Obviously, no one has a crystal ball to predict the future, and if they did, they would be quietly making a fortune rather than...

CodeBreach: Infiltrating the AWS Console Supply Chain and Hijacking AWS GitHub Repositories via CodeBuild

Wiz Research discovered a critical supply chain vulnerability that abused a CodeBuild misconfiguration to take over key AWS GitHub repositories - including the JavaScript SDK powering the AWS Console...

CVE-2026-0992 Libxml2: libxml2: denial of service via crafted xml catalogs

A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to...

ocfs2: fix kernel BUG in ocfs2_find_victim_chain

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Agent Skills in the Wild: An Empirical Study of Security Vulnerabilities at Scale

The rise of AI agent frameworks has introduced agent skills, modular packages containing instructions and executable code that dynamically extend agent capabilities. While this architecture enables powerful customization, skills execute with implicit trust and minimal vetting, creating a...

CVE-2025-68771

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix kernel BUG in ocfs2findvictimchain syzbot reported a kernel BUG in ocfs2findvictimchain because the clnextfreerec field of the allocation chain list next free slot in the chain list is 0, triggring the...

Undici has an unbounded decompression chain in HTTP responses on Node.js Fetch API via Content-Encoding leads to resource exhaustion

Impact The fetch API supports chained HTTP encoding algorithms for response content according to RFC 9110 e.g., Content-Encoding: gzip, br. This is also supported by the undici decompress interceptor. However, the number of links in the decompression chain is unbounded and the default maxHeaderSi...

GHSA-G9MF-H72J-4RW9 Undici has an unbounded decompression chain in HTTP responses on Node.js Fetch API via Content-Encoding leads to resource exhaustion

Impact The fetch API supports chained HTTP encoding algorithms for response content according to RFC 9110 e.g., Content-Encoding: gzip, br. This is also supported by the undici decompress interceptor. However, the number of links in the decompression chain is unbounded and the default maxHeaderSi...

UBUNTU-CVE-2026-22036

Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0, the number of links in the decompression chain is unbounded and the default maxHeaderSize allows a malicious server to insert thousands compression steps leading to high CPU usage and excessive memory allocation. This...

CVE-2026-22036 Undici has an unbounded decompression chain in HTTP responses on Node.js Fetch API via Content-Encoding leads to resource exhaustion

Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0, the number of links in the decompression chain is unbounded and the default maxHeaderSize allows a malicious server to insert thousands compression steps leading to high CPU usage and excessive memory allocation. This...

CVE-2026-22036

Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0, the number of links in the decompression chain is unbounded and the default maxHeaderSize allows a malicious server to insert thousands compression steps leading to high CPU usage and excessive memory allocation. This...

CVE-2026-22036 Undici has an unbounded decompression chain in HTTP responses on Node.js Fetch API via Content-Encoding leads to resource exhaustion

Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0, the number of links in the decompression chain is unbounded and the default maxHeaderSize allows a malicious server to insert thousands compression steps leading to high CPU usage and excessive memory allocation. This...

CVE-2026-22036

Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0, the number of links in the decompression chain is unbounded and the default maxHeaderSize allows a malicious server to insert thousands compression steps leading to high CPU usage and excessive memory allocation. This...

CVE-2026-22036 Undici has an unbounded decompression chain in HTTP responses on Node.js Fetch API via Content-Encoding leads to resource exhaustion

Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0, the number of links in the decompression chain is unbounded and the default maxHeaderSize allows a malicious server to insert thousands compression steps leading to high CPU usage and excessive memory allocation. This...

CVE-2026-21265

Windows Secure Boot stores Microsoft certificates in the UEFI KEK and DB. These original certificates are approaching expiration, and devices containing affected certificate versions must update them to maintain Secure Boot functionality and avoid compromising security by losing security fixes...

EUVD-2026-2463

enclave-vm Vulnerable to Sandbox Escape via Host Error Prototype Chain...

enclave-vm Vulnerable to Sandbox Escape via Host Error Prototype Chain

A critical sandbox escape vulnerability exists in enclave-vm affected: 2.6.0, patched: 2.7.0 that can allow untrusted, sandboxed JavaScript to execute arbitrary code in the host Node.js runtime. When a tool invocation fails, enclave-vm exposes a host-side Error object to sandboxed code. This Erro...

GHSA-7QM7-455J-5P63 enclave-vm Vulnerable to Sandbox Escape via Host Error Prototype Chain

A critical sandbox escape vulnerability exists in enclave-vm affected: 2.6.0, patched: 2.7.0 that can allow untrusted, sandboxed JavaScript to execute arbitrary code in the host Node.js runtime. When a tool invocation fails, enclave-vm exposes a host-side Error object to sandboxed code. This Erro...

CVE-2025-71133

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: avoid invalid read in irdmanetevent irdmanetevent should not dereference anything from "neigh" alias "ptr" until it has checked that the event is NETEVENTNEIGHUPDATE. Other events come with different structures pointe...

SpyCloud Launches Supply Chain Solution to Combat Rising Third-Party Identity Threats

New monitoring capability delivers unprecedented visibility into vendor identity exposures, moving enterprises and government agencies from static risk scoring to protecting against actual identity threats...