GHSA-v7m3-fpcr-h7m2 · 深刻度： high · エコシステム： composer — Zumba Json Serializer has a potential PHP Object Injection via Unrestricted @type in unserialize()
Zumba Json Serializer is a library to serialize PHP variables in JSON format. In versions 3.2.2 and below, the library allows deserialization of PHP objects from JSON using a special @type field. The deserializer instantiates any class specified in the @type field without restriction. When processing untrusted JSON input, this behavior may allow an attacker to instantiate arbitrary classes available in the application. If a vulnerable application passes attacker-controlled JSON into JsonSerializer::unserialize() and contains classes with dangerous magic methods (such as __wakeup() or __destruct()), this may lead to PHP Object Injection and potentially Remote Code Execution (RCE), depending on available gadget chains in the application or its dependencies. This behavior is similar in risk profile to PHP's native unserialize() when used without the allowed_classes restriction. Applications are impacted only if untrusted or attacker-controlled JSON is passed into JsonSerializer::unserialize() and the application or its dependencies contain classes that can be leveraged as a gadget chain. This issue has been fixed in version 3.2.3. If an immediate upgrade isn't feasible, mitigate the vulnerability by never deserializing untrusted JSON with JsonSerializer::unserialize(), validating and sanitizing all JSON input before deserialization, and disabling @type-based object instantiation wherever possible.
総合評価: CVE-2026-27206 は中リスク（50.4/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.74%、50 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.14% | 0.74% | +0.60% |
| 2 | 2026-04-21 | 0.39% | 0.14% | -0.25% |
| 3 | 2026-02-27 | — | 0.39% | — |
EPSS の全履歴 （全 4 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 8.1 | 3.1 | HIGH |
|
2.2 | 5.9 | [email protected] |
GHSA-v7m3-fpcr-h7m2 · 深刻度： high · エコシステム： composer — Zumba Json Serializer has a potential PHP Object Injection via Unrestricted @type in unserialize()
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-27206 not yet assigned priority: Debian including 1 source packages (php-zumba-json-serializer), 4 status rows across 4 suites (bookworm, forky, sid, trixie): open 2, resolved 2. | https://security-tracker.debian.org/tracker/CVE-2026-27206 |
ubuntu
|
medium | CVE-2026-27206 medium priority: Ubuntu including 1 source packages (php-zumba-json-serializer), 4 status rows across 4 suites (jammy, noble, questing, upstream): needs-triage 3, DNE 1. | https://ubuntu.com/security/CVE-2026-27206 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| データセットに影響を受ける製品はありません。 | |||