CVE-2026-54899

A flaw was found in Oj Optimized JSON, a Ruby gem for parsing JSON. When a Oj::Parser instance is reused and its symbolkeys setting is toggled from true to false, a heap use-after-free vulnerability occurs. This happens because the internal key cache is freed but its pointer is not cleared,...

CVE-2026-54899

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. Prior to version 3.17.2, disabling symbolkeys on a reused Oj::Parser instance triggers a heap use-after-free. When symbolkeys is toggled from true to false, optsymbolkeysset frees the internal key cache cachefree but...

DEBIAN-CVE-2026-54899

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. Prior to version 3.17.2, disabling symbolkeys on a reused Oj::Parser instance triggers a heap use-after-free. When symbolkeys is toggled from true to false, optsymbolkeysset frees the internal key cache cachefree but...

CVE-2026-54899

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. Prior to version 3.17.2, disabling symbolkeys on a reused Oj::Parser instance triggers a heap use-after-free. When symbolkeys is toggled from true to false, optsymbolkeysset frees the internal key cache cachefree but...

UBUNTU-CVE-2026-54899

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. Prior to version 3.17.2, disabling symbolkeys on a reused Oj::Parser instance triggers a heap use-after-free. When symbolkeys is toggled from true to false, optsymbolkeysset frees the internal key cache cachefree but...

CVE-2026-54899

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. Prior to version 3.17.2, disabling symbolkeys on a reused Oj::Parser instance triggers a heap use-after-free. When symbolkeys is toggled from true to false, optsymbolkeysset frees the internal key cache cachefree but...

EUVD-2026-40848

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. Prior to version 3.17.2, disabling symbolkeys on a reused Oj::Parser instance triggers a heap use-after-free. When symbolkeys is toggled from true to false, optsymbolkeysset frees the internal key cache cachefree but...

CVE-2026-54899 Oj: Use-After-Free in Oj::Parser Symbol Key Cache Toggle

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. Prior to version 3.17.2, disabling symbolkeys on a reused Oj::Parser instance triggers a heap use-after-free. When symbolkeys is toggled from true to false, optsymbolkeysset frees the internal key cache cachefree but...

CVE-2026-54899 Oj: Use-After-Free in Oj::Parser Symbol Key Cache Toggle

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. Prior to version 3.17.2, disabling symbolkeys on a reused Oj::Parser instance triggers a heap use-after-free. When symbolkeys is toggled from true to false, optsymbolkeysset frees the internal key cache cachefree but...

CVE-2026-47209

A flaw was found in vm2, an open-source virtual machine VM sandbox for Node.js. This vulnerability allows an attacker to bypass security restrictions by writing dangerous cross-realm Symbol keys to host objects. This can lead to a compromise of the integrity of the host system, potentially enabli...

Use After Free

Overview Affected versions of this package are vulnerable to Use After Free in the optsymbolkeysset. An attacker can cause the application to read from freed memory by toggling the symbolkeys option from true to false on a reused parser instance and then invoking the parse method. Remediation...

Oj: Use-After-Free in Oj::Parser Symbol Key Cache Toggle

Summary Disabling symbolkeys on a reused Oj::Parser instance triggers a heap use-after-free. When symbolkeys is toggled from true to false, optsymbolkeysset frees the internal key cache cachefree but does not clear the pointer. The next parse call reads from the freed cache via cacheintern,...

GHSA-2CW7-V8FF-P88R Oj: Use-After-Free in Oj::Parser Symbol Key Cache Toggle

Summary Disabling symbolkeys on a reused Oj::Parser instance triggers a heap use-after-free. When symbolkeys is toggled from true to false, optsymbolkeysset frees the internal key cache cachefree but does not clear the pointer. The next parse call reads from the freed cache via cacheintern,...

PT-2026-51085

Name of the Vulnerable Software and Affected Versions Oj versions prior to 3.17.2 Description A heap use-after-free occurs when disabling symbol keys on a reused Oj::Parser instance. When the symbol keys setting is changed from true to false, the opt symbol keys set function frees the internal ke...

Oj - Use-After-Free in Oj::Parser Symbol Key Cache Toggle

Summary Disabling symbolkeys on a reused Oj::Parser instance triggers a heap use-after-free. When symbolkeys is toggled from true to false, optsymbolkeysset frees the internal key cache cachefree but does not clear the pointer. The next parse call reads from the freed cache via cacheintern,...

CVE-2026-47209

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the BaseHandler.set trap in bridge.js line 1231 ignores the receiver parameter and unconditionally writes to the host target object. Per the Proxy set trap specification, when receiver !== proxy e.g., when a child object...

CVE-2026-47209 vm2: Bridge Proxy set trap ignores receiver parameter, enabling host object property injection via prototype chain

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the BaseHandler.set trap in bridge.js line 1231 ignores the receiver parameter and unconditionally writes to the host target object. Per the Proxy set trap specification, when receiver !== proxy e.g., when a child object...

EUVD-2026-36440

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the BaseHandler.set trap in bridge.js line 1231 ignores the receiver parameter and unconditionally writes to the host target object. Per the Proxy set trap specification, when receiver !== proxy e.g., when a child object...

CVE-2026-47209: Protection Mechanism Failure

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the BaseHandler.set trap in bridge.js line 1231 ignores the receiver parameter and unconditionally writes to the host target object. Per the Proxy set trap specification, when receiver !== proxy e.g., when a child object...

GHSA-C4CF-2HGV-2QV6 vm2's Bridge Proxy set trap ignores receiver parameter, enabling host object property injection via prototype chain

Summary The BaseHandler.set trap in bridge.js line 1231 ignores the receiver parameter and unconditionally writes to the host target object. Per the Proxy set trap specification, when receiver !== proxy e.g., when a child object inherits from the proxy via Object.create, the property assignment...