CVE-2026-104774

Katalog CVE

CVSS 5.8 · Medium EPSS 0,40%

Kerentanan Encoding Error. Skor CVSS 3.1 5.8 (Medium) menurut github.com.

Deskripsi (NVD)

OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, the t:jsDecode transformation in internal/transformations/js_decode.go:64-70 includes the backslash in the octal buffer, causing ParseInt to fail and return a null byte. The flaw is triggered when a rule relies on t:jsDecode and the request contains JavaScript octal escape sequences. An unauthenticated attacker can encode attack syntax with JavaScript octal escapes so the backend decodes the intended bytes while Coraza rules using t:jsDecode inspect corrupted null-byte output. The mismatch can bypass WAF rules and expose the protected application to attacks such as cross-site scripting or SQL injection. This issue is fixed in version 3.8.0.

Rincian

Terbit di NVD

12 Oktober 2026

Terakhir diubah

13 Oktober 2026

Status NVD

Received

CVSS 3.1

5.8 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-172: Encoding Error
CWE-193: Off-by-one Error
CWE-693: Protection Mechanism Failure

EPSS (30 hari)

0,40% peluang dieksploitasi; lebih tinggi dari 32,4% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/corazawaf/coraza/commit/f9b7afdbcedce7ad814663eaee2e342578ea3bb2
• https://github.com/corazawaf/coraza/releases/tag/v3.8.0
• https://github.com/corazawaf/coraza/security/advisories/GHSA-pc5q-qfxp-ggqv