CVE-2026-49263

A flaw was found in Capstone, a disassembly framework, affecting its WebAssembly WASM backend. A remote attacker could exploit this by providing a specially crafted brtable instruction. This could lead to a denial of service, where the disassembler gets stuck in a loop, or cause parser...

SUSE CVE-2026-49263

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's WebAssembly backend accepts attacker-controlled raw WASM instruction bytes through the public csdisasm and csdisasmiter APIs. For a large but well-formed brtable instruction, the WASM decoder accumulates the immediate...

Numeric Truncation Error

Overview Affected versions of this package are vulnerable to Numeric Truncation Error in readbrtable in arch/WASM/WASMDisassembler.c. An attacker can cause no-progress disassembly or parser desynchronization by supplying a large, well-formed brtable instruction through csdisasm or csdisasmiter. T...

AZL-95979 CVE-2026-49263 affecting package capstone 4.0.2-4

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's WebAssembly backend accepts attacker-controlled raw WASM instruction bytes through the public csdisasm and csdisasmiter APIs. For a large but well-formed brtable instruction, the WASM decoder accumulates the immediate...

AZL-96734 CVE-2026-49263 affecting package rust for versions less than 1.75.0-30

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's WebAssembly backend accepts attacker-controlled raw WASM instruction bytes through the public csdisasm and csdisasmiter APIs. For a large but well-formed brtable instruction, the WASM decoder accumulates the immediate...

AZL-96743 CVE-2026-49263 affecting package rust for versions less than 1.90.0-10

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's WebAssembly backend accepts attacker-controlled raw WASM instruction bytes through the public csdisasm and csdisasmiter APIs. For a large but well-formed brtable instruction, the WASM decoder accumulates the immediate...

CVE-2026-49263

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's WebAssembly backend accepts attacker-controlled raw WASM instruction bytes through the public csdisasm and csdisasmiter APIs. For a large but well-formed brtable instruction, the WASM decoder accumulates the immediate...

DEBIAN-CVE-2026-49263

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's WebAssembly backend accepts attacker-controlled raw WASM instruction bytes through the public csdisasm and csdisasmiter APIs. For a large but well-formed brtable instruction, the WASM decoder accumulates the immediate...

UBUNTU-CVE-2026-49263

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's WebAssembly backend accepts attacker-controlled raw WASM instruction bytes through the public csdisasm and csdisasmiter APIs. For a large but well-formed brtable instruction, the WASM decoder accumulates the immediate...

CVE-2026-49263

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's WebAssembly backend accepts attacker-controlled raw WASM instruction bytes through the public csdisasm and csdisasmiter APIs. For a large but well-formed brtable instruction, the WASM decoder accumulates the immediate...

CVE-2026-49263

Summary: CVE-2026-49263 affects Capstone’s WebAssembly backend prior to 6.0.0-Alpha9. The WASM decoder in cs_disasm() and cs_disasm_iter() can be fed attacker-controlled raw instruction bytes, and for large but well-formed br_table encodings it can mis-handle lengths (exactly 65,536), causing the...

CVE-2026-49263 Capstone WASM `br_table` instruction-size truncation can cause no-progress disassembly and parser desynchronization

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's WebAssembly backend accepts attacker-controlled raw WASM instruction bytes through the public csdisasm and csdisasmiter APIs. For a large but well-formed brtable instruction, the WASM decoder accumulates the immediate...

EUVD-2026-58747

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's WebAssembly backend accepts attacker-controlled raw WASM instruction bytes through the public csdisasm and csdisasmiter APIs. For a large but well-formed brtable instruction, the WASM decoder accumulates the immediate...

CVE-2026-49263 Capstone WASM `br_table` instruction-size truncation can cause no-progress disassembly and parser desynchronization

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's WebAssembly backend accepts attacker-controlled raw WASM instruction bytes through the public csdisasm and csdisasmiter APIs. For a large but well-formed brtable instruction, the WASM decoder accumulates the immediate...

CVE-2026-49263 Capstone WASM `br_table` instruction-size truncation can cause no-progress disassembly and parser desynchronization

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's WebAssembly backend accepts attacker-controlled raw WASM instruction bytes through the public csdisasm and csdisasmiter APIs. For a large but well-formed brtable instruction, the WASM decoder accumulates the immediate...

Linux Distros Unpatched Vulnerability : CVE-2025-8028

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - On arm64, a WASM brtable instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computati...

firefox: thunderbird: Large branch table could lead to truncated instruction

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: On arm64, a WASM brtable instruction with a large number of entries could lead to the label being too far from the instruction, causing truncation and incorrect computation of th...

firefox: thunderbird: Large branch table could lead to truncated instruction

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: On arm64, a WASM brtable instruction with a large number of entries could lead to the label being too far from the instruction, causing truncation and incorrect computation of th...

firefox: thunderbird: Large branch table could lead to truncated instruction

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: On arm64, a WASM brtable instruction with a large number of entries could lead to the label being too far from the instruction, causing truncation and incorrect computation of th...

firefox: thunderbird: Large branch table could lead to truncated instruction

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: On arm64, a WASM brtable instruction with a large number of entries could lead to the label being too far from the instruction, causing truncation and incorrect computation of th...