Netty: SNI handler pre-allocates up to 16 MiB from nine attacker bytes

SslClientHelloHandler.decode reads the 24-bit TLS handshake length and, when the ClientHello does not fit in the first record, eagerly allocates ctx.alloc.bufferhandshakeLength line 161. The guard at line 140 is handshakeLength maxClientHelloLength && maxClientHelloLength != 0, and the...

CVE-2026-45149

A flaw was found in the brace-expansion library. This vulnerability allows an attacker to cause a Denial of Service DoS by providing a large numeric range for expansion. The library allocates excessive memory to generate all intermediate elements before applying the maximum limit, leading to high...

Netty has a Vulnerable Default Configuration Which Leads to Denial of Service via Unbounded HTTP/3 Header Size

Summary The default configuration of the Http3ConnectionHandler in the Netty HTTP/3 codec lacks an enforced maximum header size limit. When a peer does not explicitly specify HTTP3SETTINGSMAXFIELDSECTIONSIZE, the implementation defaults to an unbounded limit. This insecure default configuration...

PT-2026-47607

Name of the Vulnerable Software and Affected Versions Netty ionetty:netty-handler affected versions not specified Description An uncontrolled memory allocation issue exists in the SslClientHelloHandler.decode function. When a ClientHello does not fit in the first record, the system eagerly...

PT-2026-47612

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.135.Final Netty versions prior to 4.2.15.Final Description In the network application framework, DefaultHttp2Connection.DefaultEndpoint initializes maxActiveStreams and maxStreams to Integer.MAX VALUE, while...

PT-2026-47587

SslClientHelloHandler.decode reads the 24-bit TLS handshake length and, when the ClientHello does not fit in the first record, eagerly allocates ctx.alloc.bufferhandshakeLength line 161. The guard at line 140 is handshakeLength maxClientHelloLength && maxClientHelloLength != 0, and the...

PT-2026-47590

Impact An uncontrolled-resource-consumption memory exhaustion denial-of-service vulnerability CWE-400 / CWE-789. A client with push access could push a tiny crafted thin pack 174 bytes whose delta header declares a huge dest size. When dulwich ingested it via add thin pack / apply delta, it would...

Amazon Linux 2023 : amazon-ssm-agent (ALAS2023-2026-1813)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1813 advisory. When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGSMAXFRAMESIZE with a value of 0. CVE-2026-33814 Tenable has extracte...

Bugsink: DOS using large numbers of event tags

Summary In affected versions, Bugsink stores every tag supplied with an incoming event. An event with an unusually large number of custom i.e. supplied by an attacker tags can therefore make ingestion spend more time than intended writing tag rows. Bugsink uses a single-writer database...

CVE-2026-38361

Multiple unauthenticated denial-of-service DoS issues in fohrloop dash-uploader v0.1.0 through v0.7.0a2. The chunked-upload handler dashuploader/httprequesthandler.py, dashuploader/upload.py trusts unsanitized, attacker-controlled upload parameters e.g. flowTotalChunks and does not enforce the...

CVE-2026-33814

When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGSMAXFRAMESIZE with a value of 0...

CVE-2026-42360

A bug in Apache Airflow's rendered-template field handling caused nested sensitive-key masking e.g. nested password / token / secret / apikey keys inside a JSON template structure to be bypassed when the rendered field exceeded core maxtemplatedfieldlength: Airflow stringified the structure befor...

CVE-2026-0085

In applySimpleFieldMaxSize of DataRowHandler.java, there is a possible way to insert a large contact name due to improper input validation. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation...

CVE-2026-44456

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.16, bodyLimit does not reliably enforce maxSize for requests without a usable Content-Length e.g. Transfer-Encoding: chunked. Oversized requests can reach handlers and return 200 instead of 413. Th...

CVE-2026-7451

A maliciously crafted TIF file, when parsed through Autodesk 3ds Max, can force an Out-of-Bounds Write vulnerability. A malicious actor may leverage this vulnerability to cause a crash, cause data corruption, or execute arbitrary code in the context of the current process...

CVE-2026-7454

A maliciously crafted WRL file, when parsed through Autodesk 3ds Max, can force a Memory Corruption vulnerability. A malicious actor can leverage this vulnerability to execute arbitrary code in the context of the current process...

CVE-2026-7452

A maliciously crafted WRL file, when parsed through Autodesk 3ds Max, can force a Memory Corruption vulnerability. A malicious actor can leverage this vulnerability to execute arbitrary code in the context of the current process...

CVE-2026-40902

PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.4, 2.1.16, 2.4.5, 3.10.5, and 5.7.0, the XLSX reader's ColumnAndRowAttributes::readRowAttributes method reads row numbers from XML attributes without validating them against the spreadsheet maximum row...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the readExternal methods in the AE, SS, and ServerConfigurationPayload classes, all of which call builderWithExpectedSize without checking the size of the input. A cluster user wit...

GHSA-W4C6-7R69-W7J9 klever-go: REST API slow-header connection exhaustion via Gin Engine.Run

Summary The Klever seednode REST API starts a Gin engine with Engine.RunrestAPIInterface. In Gin v1.9.1, Engine.Run calls Go's default http.ListenAndServe, which constructs an HTTP server without application-level ReadHeaderTimeout, ReadTimeout, or MaxHeaderBytes limits. An unauthenticated client...