Yüksek CVSS 8.1

CVE-2026-41316: CVE-2026-41316: güvenlik açığı

Yayın: 24 Nisan 2026 06:16 · Güncelleme: 6 Kasım 2026 10:18

Açıklama (NVD)

ERB is a templating system for Ruby. Ruby 2.7.0 (before ERB 2.2.0 was published on rubygems.org) introduced an `@_init` instance variable guard in `ERB#result` and `ERB#run` to prevent code execution when an ERB object is reconstructed via `Marshal.load` (deserialization). However, three other public methods that also evaluate `@src` via `eval()` were not given the same guard: `ERB#def_method`, `ERB#def_module`, and `ERB#def_class`. An attacker who can trigger `Marshal.load` on untrusted data in a Ruby application that has `erb` loaded can use `ERB#def_module` (zero-arg, default parameters) as a code execution sink, bypassing the `@_init` protection entirely. ERB 4.0.3.1, 4.0.4.1, 6.0.1.1, and 6.0.4 patch the issue.

Özet bilgiler

CVSS v3.1: 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: %1,13 (yüzdelik 67)
CWE: CWE-693
Yama: Yok / bilinmiyor

Kaynaklar

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