RUSTSEC-2026-0357 Out-of-bounds zero-length stream writes can panic

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-93g3-36p8-x2gc For more information see the GitHub-hosted security advisory...

RUSTSEC-2026-0354 Host panic when component `call_async` is cancelled under some conditions

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-3r89-v5mq-j5xf For more information see the GitHub-hosted security advisory...

RUSTSEC-2026-0351 `wasi-http`: Request with long url before query parameter crashes host

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-w36r-2hch-9xp9 For more information see the GitHub-hosted security advisory...

RUSTSEC-2026-0348 Brotli certificate decompression can allocate up to 1 GiB before authentication

The built-in Brotli certificate decompressor enabled by the non-default brotli crate feature bounded the size of the decompressed output, but accepted a peer-selected history window. Brotli's large-window extension was enabled, so a five-byte header could cause an allocation of 1 GiB. A peer can...

RUSTSEC-2026-0333 Resource budgets not enforced on the typed deserialization path

ParserConfig::maxevents, maxnodes, maxtotalscalarbytes, maxmergekeys, aliasanchorratio and the alias jump factor were enforced only by the two Value loaders. A typed target with a default-shaped configuration is served by the streaming deserializer, which never read those fields, so tightening an...

RUSTSEC-2026-0338 Remote peer can panic quinn-proto with zero-length STREAM frames during unordered reads

When a stream is read in unordered mode for example through RecvStream::readfalse in quinn-proto or readunordered in quinn, quinn-proto proactively deduplicates received data by recording received ranges in a RangeSet through its replace method. When an incoming STREAM frame carried an empty...

RUSTSEC-2026-0342 Zero-length DATAGRAM frames bypass the receive buffer limit in quinn-proto

quinn-proto bounds its queue of received datagrams by charging each queued frame's payload length against TransportConfig::datagramreceivebuffersize, evicting the oldest datagrams when the limit is exceeded. A DATAGRAM frame with an empty payload was charged zero bytes, so it never triggered...

RUSTSEC-2026-0339 Unbounded growth of pending connection ID retirements in quinn-proto

When processing a NEWCONNECTIONID frame, quinn-proto queues a RETIRECONNECTIONID frame for each connection ID that the peer asked it to retire. The normal path bounds this queue and closes the connection with a CONNECTIONIDLIMITERROR if the bound would be exceeded. However, the path handling a...

RUSTSEC-2021-0157 Incorrect escaping for `url("")` functions in CSS style attributes

In some cases, quotation marks in CSS url functions are not escaped. This allows CSS injection. This feature is not enabled by default, so an application is vulnerable if, and only if, the style attribute is allowed and filterstyleproperties is used. As an example, this snippet: html Would...

RUSTSEC-2021-0158 XSS in ammonia via SVG `animateMotion`, `animateTransform`, and/or `animateColor` tags

The neutralization that ammonia applied to animate and set was not applied to other forms of SVG animation, which can be used for XSS. The following SVG will produce a link with a javascript scheme. If the user clicks this link, they will run it. xml Click set Ammonia did not apply attribute...