CVE Watch29 de out. de 2026

CVE-2026-57209

Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.17, when Heimdall operates in pro

CVSS

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Sem CVSS

EPSS

0.5%

p42

KEV

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Exploit Today

0-100

Publicado: 23 de out. de 2026 · Última mod.: 29 de out. de 2026 · CWE-20 · CWE-74

EPSS · 30d

0.3%EPSS · 30 dias0.5%

2026-10-252026-11-07

Descrição técnica

Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.17, when Heimdall operates in proxy mode, it constructs the Forwarded HTTP header after executing the matched rule pipeline by inserting the incoming request's Host header value directly into the header string without sanitizing commas or semicolons. This allows an attacker to inject additional parameters into the Forwarded header, potentially spoofing IP addresses for upstream services. This issue has been patched in version 0.17.17.

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