CVE-2026-55187

Katalog CVE

CVSS 5.8 · Medium EPSS 0,38%

Kerentanan Server-Side Request Forgery (SSRF). Skor CVSS 3.1 5.8 (Medium) menurut github.com.

Deskripsi (NVD)

Mailpit is an email testing tool and API for developers. Prior to 1.30.2, the remediation shipped for CVE-2026-27808 is incomplete because the tools.IsInternalIP deny-list in internal/tools/net.go relies on Go's standard library classification helpers and does not block IPv6 transition mechanisms or prefixes such as NAT64, 6to4, IPv4-compatible IPv6, ISATAP, fec0::/10, and 2001:db8::/32. An attacker who can deliver email and invoke POST /api/v1/message/{ID}/link-check can coerce the Link Check API's safeDialContext path into dialing internal destinations and can use status-code and error feedback to map internal service reachability, including cloud metadata endpoints. This issue is fixed in version 1.30.2.

Rincian

Terbit di NVD

10 Juli 2026

Terakhir diubah

13 Juli 2026

Status NVD

Deferred

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-918: Server-Side Request Forgery (SSRF)

EPSS (30 hari)

0,38% peluang dieksploitasi; lebih tinggi dari 30,5% 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/axllent/mailpit/commit/a88dadbbe1df016a35a445089ef2a362a6c2de78
• https://github.com/axllent/mailpit/releases/tag/v1.30.2
• https://github.com/axllent/mailpit/security/advisories/GHSA-w4mc-hhc6-xp28