830 matches found
EUVD-2026-75871
A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash...
CVE-2026-79590
A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0 . An attacker can supply a specially crafted Ruby source file that causes the parser to pass a NULL pointer to nonnull string handling functions, leading to undefined behavior and an application crash . A...
EUVD-2026-74787
mrubyc through 4.0.0 contains a null pointer dereference vulnerability in the openter handler in src/vm.c when processing untrusted bytecode. Attackers can craft malicious .mrb bytecode files with OPENTER instructions at the top level to crash the embedding application and cause denial of service...
CVE-2026-86547 mrubyc through 4.0.0 NULL Pointer Dereference via OP_ENTER
mrubyc through 4.0.0 contains a null pointer dereference vulnerability in the openter handler in src/vm.c when processing untrusted bytecode. Attackers can craft malicious .mrb bytecode files with OPENTER instructions at the top level to crash the embedding application and cause denial of service...
OSV-2026-1220 Use-of-uninitialized-value in str_escape
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=554268877 Crash type: Use-of-uninitialized-value Crash state: strescape mrbvmexec yieldwithattr...
Linux Distros Unpatched Vulnerability : CVE-2022-4996
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw has been found in mruby 3.1.0. Affected is the function udiv of the file bigint.c. Executing a manipulation can lead to floating point comparison with...
AZL-97542 CVE-2022-4996 affecting package nghttp2 1.61.0-3
A flaw has been found in mruby 3.1.0. Affected is the function udiv of the file bigint.c. Executing a manipulation can lead to floating point comparison with incorrect operator. It is possible to launch the attack remotely. The exploit has been published and may be used. It is best practice to...
CVE-2022-4996
A flaw has been found in mruby 3.1.0. Affected is the function udiv of the file bigint.c. Executing a manipulation can lead to floating point comparison with incorrect operator. It is possible to launch the attack remotely. The exploit has been published and may be used. It is best practice to...
CVE-2022-4996
A flaw has been found in mruby 3.1.0. Affected is the function udiv of the file bigint.c. Executing a manipulation can lead to floating point comparison with incorrect operator. It is possible to launch the attack remotely. The exploit has been published and may be used. It is best practice to...
UBUNTU-CVE-2022-4996
A flaw has been found in mruby 3.1.0. Affected is the function udiv of the file bigint.c. Executing a manipulation can lead to floating point comparison with incorrect operator. It is possible to launch the attack remotely. The exploit has been published and may be used. It is best practice to...
CVE-2022-4996 mruby bigint.c udiv floating point comparison with incorrect operator
A flaw has been found in mruby 3.1.0. Affected is the function udiv of the file bigint.c. Executing a manipulation can lead to floating point comparison with incorrect operator. It is possible to launch the attack remotely. The exploit has been published and may be used. It is best practice to...
CVE-2022-4996
In mruby 3.1.0, the udiv function in bigint.c uses an incorrect operator for floating-point comparison, enabling a remote denial-of-service attack; a proof-of-concept exploit exists and an official fix is available, so upgrading to the patched version is recommended.
CVE-2022-4996 mruby bigint.c udiv floating point comparison with incorrect operator
A flaw has been found in mruby 3.1.0. Affected is the function udiv of the file bigint.c. Executing a manipulation can lead to floating point comparison with incorrect operator. It is possible to launch the attack remotely. The exploit has been published and may be used. It is best practice to...
kobako Sandbox Escape: guest eval reaches host RCE via method_missing → public_send (any bound Service)
Summary A guest mruby script running inside the Kobako sandbox can execute arbitrary Ruby in the host process, fully escaping the sandbox. Details A host embeds bound "Service" objects that guest scripts call across the wasm boundary through the transport dispatcher. The dispatcher passed the...
GHSA-7PWQ-Q9JF-539H kobako Sandbox Escape: guest eval reaches host RCE via method_missing → public_send (any bound Service)
Summary A guest mruby script running inside the Kobako sandbox can execute arbitrary Ruby in the host process, fully escaping the sandbox. Details A host embeds bound "Service" objects that guest scripts call across the wasm boundary through the transport dispatcher. The dispatcher passed the...
CVE-2026-20760
Improper handling of overlap between protected memory ranges in some microcode for some IntelR Processors within Ring 0: Hypervisor may allow an escalation of privilege. Authorized adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This resu...
OSV-2026-1110 Check failed in CheckUnwind
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=541969271 Crash type: Check failed Crash state: CheckUnwind mrbbasicallocfunc pmnodehashinsert...
mruby:mruby_fuzzer: Check failed in CheckUnwind
Project: https://github.com/mruby/mruby.git Detailed Report: https://oss-fuzz.com/testcase?key=4712963353935872 Project: mruby Fuzzing Engine: libFuzzer Fuzz Target: mrubyfuzzer Job Type: libfuzzermsanmruby Platform Id: linux Crash Type: Check failed Crash Address: Crash State: CheckUnwind...