CVE-2021-43297-POC

CVE-2021-43297 脆弱性の説明 Apache Dubbo Hessian-Lite 3.2.11以前のバージョンには、潜在的なRCE攻撃リスクが存在します。Hessian-Liteはシリアライズ例外が発生した際に関連情報を出力しますが、これにより悪意を持ってカスタマイズされたBeanのtoStringメソッドがトリガーされる可能性があり、RCE攻撃につながる恐れがあります。 原理 最初のPOCはApache Dubbo=2.7.8でのみRCEを実現できました。原理については先知文章（審査通過後に修正して戻します）を参照してください。投稿後にさらに研究を重ね、Apache...

Security Bulletin: IBM InfoSphere Optim Archive Viewer is affected by a vulnerability in postcss-selector-parser (CVE-2026-9358)

Summary A Regular Expression Denial of Service ReDoS vulnerability in the postcss-selector-parser library CVE-2026-9358 used by IBM InfoSphere Optim Archive Viewer has been addressed by upgrading the component to version 7.1.4. Vulnerability Details CVEID:CVE-2026-9358 DESCRIPTION: A vulnerabilit...

ApostropheCMS: 2nd-order prototype pollution via PATCH leading to single-request persistent DoS

The vulnerability is a single-request persistent DoS by submitting e.g. "PATCH /api/v1/article/" with a valid editor session and body of "toString.call":"x", overwriting the global toString function with value x. Fabian...

GHSA-VMG4-6GFG-83QX ApostropheCMS: 2nd-order prototype pollution via PATCH leading to single-request persistent DoS

The vulnerability is a single-request persistent DoS by submitting e.g. "PATCH /api/v1/article/" with a valid editor session and body of "toString.call":"x", overwriting the global toString function with value x. Fabian...

netty-incubator-codec-ohttp: BoringSSL HPKE private key bytes exposed through toString() and exception messages

Summary io.netty.incubator:netty-incubator-codec-ohttp-hpke-classes-boringssl exposes raw HPKE private key bytes in string representations and error messages. BoringSSLAsymmetricCipherKeyPair.toString includes the private-key parameter object, and BoringSSLAsymmetricKeyParameter.toString renders...

GHSA-2MC4-J865-9Q4R netty-incubator-codec-ohttp: BoringSSL HPKE private key bytes exposed through toString() and exception messages

Summary io.netty.incubator:netty-incubator-codec-ohttp-hpke-classes-boringssl exposes raw HPKE private key bytes in string representations and error messages. BoringSSLAsymmetricCipherKeyPair.toString includes the private-key parameter object, and BoringSSLAsymmetricKeyParameter.toString renders...

Inefficient Algorithmic Complexity

Overview Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the IETFUtils.valueToString method, reached through X500Name.toString, equals, and hashCode via AbstractX500NameStyle, which escapes each special character with vBuf.insertindex, "\" on the same...

Valibot: record() issue paths can make flatten() throw for inherited Object property names

Summary valibot 1.4.1 can throw a TypeError inside its flatten helper when validation issues contain attacker-controlled object keys such as toString, valueOf, or hasOwnProperty. The issue is reachable through normal record validation. record intentionally filters proto, prototype, and constructo...

GHSA-5QJJ-4XWW-7PHC Valibot: record() issue paths can make flatten() throw for inherited Object property names

Summary valibot 1.4.1 can throw a TypeError inside its flatten helper when validation issues contain attacker-controlled object keys such as toString, valueOf, or hasOwnProperty. The issue is reachable through normal record validation. record intentionally filters proto, prototype, and constructo...

PT-2026-64442

Name of the Vulnerable Software and Affected Versions Valibot versions prior to 1.4.2 Description Valibot can throw a TypeError within its flatten helper when validation issues contain object keys controlled by an attacker that collide with inherited Object.prototype properties, such as toString,...

CVE-2026-47732

A flaw was found in Twig, a template language for PHP. This vulnerability allows a sandboxed template author to bypass security policies by triggering PHP string coercion on specific language constructs. This can lead to information disclosure, as an attacker may be able to invoke toString on...

CVE-2026-48806

Twig is a template language for PHP. Prior to 3.27.0, ArrayExpression does not guard dynamic mapping keys that are coerced to strings, allowing PHP to invoke toString on a Stringable object used as a mapping key without calling SandboxExtension::ensureToStringAllowed. This issue is fixed in versi...

CVE-2026-48806

Twig is a template language for PHP. Prior to 3.27.0, ArrayExpression does not guard dynamic mapping keys that are coerced to strings, allowing PHP to invoke toString on a Stringable object used as a mapping key without calling SandboxExtension::ensureToStringAllowed. This issue is fixed in versi...

EUVD-2026-44514

Twig is a template language for PHP. Prior to 3.27.0, the sandbox toString checks do not fully cover Traversable values passed to join and replace filters or operands evaluated by the in and not in operators, allowing contained Stringable objects to be coerced to strings without consulting the...

CVE-2026-48807 Twig: Sandbox `__toString()` policy bypass via `Traversable` in `join` and `replace` filters

Twig is a template language for PHP. Prior to 3.27.0, the sandbox toString checks do not fully cover Traversable values passed to join and replace filters or operands evaluated by the in and not in operators, allowing contained Stringable objects to be coerced to strings without consulting the...

CVE-2026-48807 Twig: Sandbox `__toString()` policy bypass via `Traversable` in `join` and `replace` filters

Twig is a template language for PHP. Prior to 3.27.0, the sandbox toString checks do not fully cover Traversable values passed to join and replace filters or operands evaluated by the in and not in operators, allowing contained Stringable objects to be coerced to strings without consulting the...

CVE-2026-48807 Twig: Sandbox `__toString()` policy bypass via `Traversable` in `join` and `replace` filters

Twig is a template language for PHP. Prior to 3.27.0, the sandbox toString checks do not fully cover Traversable values passed to join and replace filters or operands evaluated by the in and not in operators, allowing contained Stringable objects to be coerced to strings without consulting the...

CVE-2026-48806 Twig: Sandbox `__toString()` policy bypass via dynamic mapping keys

Twig is a template language for PHP. Prior to 3.27.0, ArrayExpression does not guard dynamic mapping keys that are coerced to strings, allowing PHP to invoke toString on a Stringable object used as a mapping key without calling SandboxExtension::ensureToStringAllowed. This issue is fixed in versi...

CVE-2026-48806

Twig (PHP) prior to 3.27.0 is vulnerable to a Sandbox __toString() policy bypass via dynamic mapping keys in ArrayExpression. The issue allows a Stringable object used as a mapping key to invoke its __toString() without SandboxExtension::ensureToStringAllowed(), enabling potential data exposure a...

CVE-2026-48806

Twig is a template language for PHP. Prior to 3.27.0, ArrayExpression does not guard dynamic mapping keys that are coerced to strings, allowing PHP to invoke toString on a Stringable object used as a mapping key without calling SandboxExtension::ensureToStringAllowed. This issue is fixed in versi...