Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: tee, amdtee: fixed the use-after-free vulnerability in amdteeclosesession. There is a potential race condition in amdteeclosesession that may cause a use-after-free in amdteeopenSession. For example, if a session has a referen...

Linux kernel virtio crypto DoS

The vulnerability of the virtiocryptoalgskcipherclosesession function in the drivers/crypto/virtio/virtiocryptoskcipheralgs.c driver of the Linux kernel’s cryptographic accelerator is related to improper memory release. Exploiting this vulnerability could allow a remote attacker to cause a servic...

SUSE CVE-2026-21434

webtransport-go is an implementation of the WebTransport protocol. From 0.3.0 to 0.9.0, an attacker can cause excessive memory consumption in webtransport-go's session implementation by sending a WTCLOSESESSION capsule containing an excessively large Application Error Message. The implementation...

GO-2026-4485 webtransport-go: Memory Exhaustion Attack due to Missing Length Check in WT_CLOSE_SESSION Capsule in github.com/quic-go/webtransport-go

webtransport-go: Memory Exhaustion Attack due to Missing Length Check in WTCLOSESESSION Capsule in github.com/quic-go/webtransport-go...

CVE-2026-21435

webtransport-go is an implementation of the WebTransport protocol. Prior to v0.10.0, an attacker can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. A malicious peer can withhold QUIC flow control credit on the CONNECT stream,...

CVE-2026-21434

webtransport-go is an implementation of the WebTransport protocol. From 0.3.0 to 0.9.0, an attacker can cause excessive memory consumption in webtransport-go's session implementation by sending a WTCLOSESESSION capsule containing an excessively large Application Error Message. The implementation...

CVE-2026-21434

webtransport-go is an implementation of the WebTransport protocol. From 0.3.0 to 0.9.0, an attacker can cause excessive memory consumption in webtransport-go's session implementation by sending a WTCLOSESESSION capsule containing an excessively large Application Error Message. The implementation...

CVE-2026-21435

Technical details for CVE-2026-21435 are not publicly available in the provided connected documents. Monitor for updates.

CVE-2026-21435 webtransport-go CloseWithError can block indefinitely

webtransport-go is an implementation of the WebTransport protocol. Prior to v0.10.0, an attacker can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. A malicious peer can withhold QUIC flow control credit on the CONNECT stream,...

CVE-2026-21435

webtransport-go is an implementation of the WebTransport protocol. Prior to v0.10.0, an attacker can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. A malicious peer can withhold QUIC flow control credit on the CONNECT stream,...

CVE-2026-21434

This CVE affects webtransport-go (versions 0.3.0 to 0.9.0). A WT_CLOSE_SESSION capsule with an oversized Application Error Message can be fully read and stored in memory due to lack of the draft-mandated 1024-byte limit, enabling memory exhaustion. The issue is fixed in version 0.10.0. Affected i...

CVE-2026-21434 webtransport-go affected by Memory Exhaustion Attack due to Missing Length Check in WT_CLOSE_SESSION Capsule

webtransport-go is an implementation of the WebTransport protocol. From 0.3.0 to 0.9.0, an attacker can cause excessive memory consumption in webtransport-go's session implementation by sending a WTCLOSESESSION capsule containing an excessively large Application Error Message. The implementation...

CVE-2026-21434 webtransport-go affected by Memory Exhaustion Attack due to Missing Length Check in WT_CLOSE_SESSION Capsule

webtransport-go is an implementation of the WebTransport protocol. From 0.3.0 to 0.9.0, an attacker can cause excessive memory consumption in webtransport-go's session implementation by sending a WTCLOSESESSION capsule containing an excessively large Application Error Message. The implementation...

CVE-2026-21434

webtransport-go is an implementation of the WebTransport protocol. From 0.3.0 to 0.9.0, an attacker can cause excessive memory consumption in webtransport-go's session implementation by sending a WTCLOSESESSION capsule containing an excessively large Application Error Message. The implementation...

GHSA-PX4R-G4P3-HHQV webtransport-go: CloseWithError can block indefinitely

Summary An attacker can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. A malicious peer can withhold QUIC flow control credit on the CONNECT stream, blocking transmission of the WTCLOSESESSION capsule and causing the close operati...

webtransport-go: Memory Exhaustion Attack due to Missing Length Check in WT_CLOSE_SESSION Capsule

Summary An attacker can cause excessive memory consumption in webtransport-go's session implementation by sending a WTCLOSESESSION capsule containing an excessively large Application Error Message. The implementation does not enforce the draft-mandated limit of 1024 bytes on this field, allowing ...

GHSA-G6X7-JQ8P-6Q9Q webtransport-go: Memory Exhaustion Attack due to Missing Length Check in WT_CLOSE_SESSION Capsule

Summary An attacker can cause excessive memory consumption in webtransport-go's session implementation by sending a WTCLOSESESSION capsule containing an excessively large Application Error Message. The implementation does not enforce the draft-mandated limit of 1024 bytes on this field, allowing ...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to missing length validation in the WTCLOSESESSION capsule parser. An attacker can exhaust system memory by sending a capsule with an excessively large Application Error Message...

PT-2026-7868

Name of the Vulnerable Software and Affected Versions webtransport-go versions 0.3.0 through 0.9.0 Description webtransport-go’s session implementation is susceptible to excessive memory consumption. An attacker can send a WT CLOSE SESSION capsule containing an excessively large Application Error...

PT-2026-7869

Name of the Vulnerable Software and Affected Versions webtransport-go versions prior to 0.10.0 Description A malicious peer can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. Specifically, a peer can withhold QUIC flow control...