Uncontrolled Recursion

Overview MessagePack is a MessagePackMsgPack Serializer for C.NET, .NET Core, Unity, Xamarin. Affected versions of this package are vulnerable to Uncontrolled Recursion in the JSON conversion process. An attacker can cause the application to exhaust the process stack and terminate unexpectedly by...

EUVD-2026-38384

MessagePack-CSharp: JSON conversion APIs can recurse without consistent depth enforcement...

MessagePack-CSharp: JSON conversion APIs can recurse without consistent depth enforcement

Summary MessagePack-CSharp's JSON conversion helpers contain multiple recursion paths that do not consistently enforce a depth limit. These paths are in the JSON conversion component rather than normal typed MessagePack deserialization. Three related issues are covered by this advisory: 1...

GHSA-CJ9G-3MJ2-G8VV MessagePack-CSharp: JSON conversion APIs can recurse without consistent depth enforcement

Summary MessagePack-CSharp's JSON conversion helpers contain multiple recursion paths that do not consistently enforce a depth limit. These paths are in the JSON conversion component rather than normal typed MessagePack deserialization. Three related issues are covered by this advisory: 1...

UBUNTU-CVE-2026-56766

Hydra through 9.7, fixed in commit 9cc84c2, contains a stack buffer overflow in NTLM authentication across SMTP, POP3, IMAP, NNTP, HTTP, HTTP-Proxy, and HTTP-Proxy-Urlenum modules when processing malicious NTLM Type-2 challenges. A malicious server can send a crafted NTLM Type-2 challenge with an...

CVE-2026-56766

Hydra through 9.7, fixed in commit 9cc84c2, contains a stack buffer overflow in NTLM authentication across SMTP, POP3, IMAP, NNTP, HTTP, HTTP-Proxy, and HTTP-Proxy-Urlenum modules when processing malicious NTLM Type-2 challenges. A malicious server can send a crafted NTLM Type-2 challenge with an...

CVE-2026-53002

A flaw was found in the Linux kernel's netfilter conntrack module. This vulnerability arises from the use of sprintf and insufficient buffer sizing in the manglecontentlen function, which can lead to a stack-out-of-bounds write. An attacker could potentially exploit this memory corruption issue t...

EUVD-2026-38388

MessagePack-CSharp: MessagePackReader.Skip can recurse without enforcing maximum object graph depth...

Uncontrolled Recursion

Overview MessagePack is a MessagePackMsgPack Serializer for C.NET, .NET Core, Unity, Xamarin. Affected versions of this package are vulnerable to Uncontrolled Recursion in the Skip process. An attacker can cause the application to terminate unexpectedly by submitting specially crafted MessagePack...

EUVD-2026-38389

MessagePack-CSharp: Denial of service vulnerabilities can swamp the CPU or crash the process with stack and heap overflows...

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')

Overview MessagePack is a MessagePackMsgPack Serializer for C.NET, .NET Core, Unity, Xamarin. Affected versions of this package are vulnerable to Use of Externally-Controlled Input to Select Classes or Code 'Unsafe Reflection' in the ReadDateTime function when processing a MessagePack timestamp...

GO-2026-5157 hjson stack exhaustion vulnerability in github.com/hjson/hjson-go

hjson stack exhaustion vulnerability in github.com/hjson/hjson-go...

CVE-2026-47770

jq is a command-line JSON processor. Prior to 1.8.2, comparing two sufficiently deeply nested arrays with the == operator exhausts the C stack on jq's ordinary command-line surface, resulting in denial of service via stack exhaustion uncontrolled recursion. The crash occurs in jq's recursive...

AZL-90273 CVE-2026-47770 affecting package jq for versions less than 1.7.1-8

jq is a command-line JSON processor. Prior to 1.8.2, comparing two sufficiently deeply nested arrays with the == operator exhausts the C stack on jq's ordinary command-line surface, resulting in denial of service via stack exhaustion uncontrolled recursion. The crash occurs in jq's recursive...

ALPINE-CVE-2026-47770

jq is a command-line JSON processor. Prior to 1.8.2, comparing two sufficiently deeply nested arrays with the == operator exhausts the C stack on jq's ordinary command-line surface, resulting in denial of service via stack exhaustion uncontrolled recursion. The crash occurs in jq's recursive...

CVE-2026-56789 RTKLIB 2.4.3 - Heap Buffer Overflow and Stack Read via Oversized RINEX Epoch Satellite Count

RTKLIB through 2.4.3 contains a heap buffer overflow vulnerability in the readrnxobsb function in src/rinex.c that allows attackers to trigger memory corruption by failing to clamp satellite count values from RINEX epoch headers. Attackers can craft malicious RINEX files declaring more than 64...

CVE-2026-56789

RTKLIB 2.4.3 is affected by a heap buffer overflow and out-of-bounds stack read in readrnxobsb (src/rinex.c). The issue arises when RINEX epoch headers declare more than 64 satellites per epoch, allowing memory corruption and potentially crashing applications such as rnx2rtkp and RTKPOST. Connect...

CVE-2026-56789 RTKLIB 2.4.3 - Heap Buffer Overflow and Stack Read via Oversized RINEX Epoch Satellite Count

RTKLIB through 2.4.3 contains a heap buffer overflow vulnerability in the readrnxobsb function in src/rinex.c that allows attackers to trigger memory corruption by failing to clamp satellite count values from RINEX epoch headers. Attackers can craft malicious RINEX files declaring more than 64...

CVE-2026-53078

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF socket operations sockops program. When a BPF sockops program accesses context fields with the same destination and source registers, certain macros fail to properly clear the destination register. This can lead to a...

CVE-2026-56766

Hydra before 9.7 contains a stack buffer overflow in the NTLM authentication handler used by SMTP, POP3, IMAP, NNTP, HTTP, HTTP-Proxy, and HTTP-Proxy-Urlenum modules when processing crafted NTLM Type-2 challenges. A malicious server can send a long domain in NTLM Type-2, overflowing a 500-byte st...