Astra Linux – Vulnerability in Firefox and Thunderbird

There was no limit to the number of HTTP/2 CONTINUATION frames that could be processed. A server could exploit this to cause a memory exhaustion condition in the browser. This vulnerability affects Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mac80211: Only QoS data frames are tracked for admission control. For admission control, it clearly only applies to QoS data frames. Otherwise, we wouldn’t even be able to access the QoS field in the header. Syzbot reported an...

Astra Linux – Vulnerability in golang-golang-x-net, golang-1.19

An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request’s headers exceed MaxHeaderBytes, no...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in the net/ceph/messengerv2.c file within the Linux kernel before version 6.4.5. There is an integer signedness error, which leads to a buffer overflow and remote code execution via the HELLO command or one of the AUTH frames. This occurs due to an untrusted length value...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: fnic: Fixed a crash in fnicwqcmplhandler when FDMI times out. When both the RHBA and RPA FDMI requests time out, fnic reuses a frame to send ABTS for each of them. Upon completion of the sending process, this leads to a...

Astra Linux – Vulnerability in Netty

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.124.Final and 4.2.4.Final, Netty was vulnerable to MadeYouReset DDoS attacks. This is a logical vulnerability in the HTTP/2 protocol, which exploits malformed HTTP/2 control frames to break the maximum...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021644)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021644 advisory. In the Linux kernel, the following vulnerability has been resolved: mm: avoid leaving partial pfn mappings around in error case As Jann points out, PFN mappings are...

CVE-2026-43970

A flaw was found in cowlib. This vulnerability, categorized as Improper Handling of Highly Compressed Data Data Amplification, allows an unauthenticated remote attacker to cause a denial of service DoS. By sending a specially crafted SPDY frame, the cowspdy:inflate/2 function in cowlib passes...

netty: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood

A flaw was found in Netty. A remote user can trigger a Denial of Service DoS against a Netty HTTP/2 server by sending a flood of CONTINUATION frames. The server's lack of a limit on these frames, coupled with a bypass of size-based mitigations using zero-byte frames, allows an attacker to consume...

netty: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood

A flaw was found in Netty. A remote user can trigger a Denial of Service DoS against a Netty HTTP/2 server by sending a flood of CONTINUATION frames. The server's lack of a limit on these frames, coupled with a bypass of size-based mitigations using zero-byte frames, allows an attacker to consume...

CVE-2026-42786

A flaw was found in bandit. A remote, unauthenticated attacker can exploit an Allocation of Resources Without Limits or Throttling vulnerability in the fragment reassembly path of the WebSocket connection handling. This allows the attacker to send an unbounded number of continuation frames, leadi...

CVE-2026-42788

A flaw was found in bandit. An unauthenticated remote attacker can exploit a vulnerability in the HTTP/2 frame deserialization process by sending oversized HTTP/2 frames. This allows the attacker to force the server to buffer excessive amounts of memory, leading to memory exhaustion and a denial ...

RUSTSEC-2026-0154 Unbounded 32-bit allocation

Both the SSH agent server and client accepted peer-controlled frame lengths without enforcing a maximum frame size. This could cause large memory allocations while parsing a maliciously crafted agent frame. A malicious peer could advertise an oversized frame length, causing the client or server t...

RUSTSEC-2026-0153 Unchecked `CryptoVec` allocation and growth handling

CryptoVec used unchecked capacity growth, unchecked length arithmetic, and unsafe allocation and locking paths. In affected russh releases, attacker-controlled input could reach these code paths through buffer resizing operations. Two affected reachability paths were identified: Current russh...

Unbounded 32-bit allocation

Both the SSH agent server and client accepted peer-controlled frame lengths without enforcing a maximum frame size. This could cause large memory allocations while parsing a maliciously crafted agent frame. A malicious peer could advertise an oversized frame length, causing the client or server t...

netty: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood

A flaw was found in Netty. A remote user can trigger a Denial of Service DoS against a Netty HTTP/2 server by sending a flood of CONTINUATION frames. The server's lack of a limit on these frames, coupled with a bypass of size-based mitigations using zero-byte frames, allows an attacker to consume...

[SECURITY] [DSA 6266-1] nghttp2 security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6266-1 [email protected] https://www.debian.org/security/ Aron Xu May 14, 2026 https://www.debian.org/security/faq - -------------------------------------------------------------------------...

SUSE CVE-2026-42926

When NGINX Open Source is configured to proxy HTTP/2 traffic by setting proxyhttpversion to 2, and also uses proxysetbody, an attacker may be able to inject frame headers and payload bytes to the upstream peer. Note: Software versions which have reached End of Technical Support EoTS are not...

cowlib: Decompression Bomb in cow_spdy:inflate/2 Allows Memory Exhaustion via Crafted SPDY Frame

Improper Handling of Highly Compressed Data Data Amplification vulnerability in ninenines cowlib allows unauthenticated remote denial of service via memory exhaustion. cowspdy:inflate/2 in cowlib passes peer-supplied compressed bytes directly to zlib:inflate/2 with no output size bound. The SPDY...

CVE-2026-43970 Decompression Bomb in cow_spdy:inflate/2 Allows Memory Exhaustion via Crafted SPDY Frame

Improper Handling of Highly Compressed Data Data Amplification vulnerability in ninenines cowlib allows unauthenticated remote denial of service via memory exhaustion. cowspdy:inflate/2 in cowlib passes peer-supplied compressed bytes directly to zlib:inflate/2 with no output size bound. The SPDY...