CVE-2026-120316

Medium

Description

http4k before 6.62.0.0-ee contains a path traversal vulnerability in ThymeleafTemplates Caching and HotReload that allows unauthenticated attackers to read files outside baseTemplateDir by supplying ../ segments in ViewModel.template() values. Attackers can influence request-driven template selection so Thymeleaf's FileTemplateResolver resolves escaped paths without containment checks, disclosing any file readable by the server process.

SeverityMedium

CVSS5.9

Exploit probability—

ProductHttp4k

PublishedNov 2, 2026

First seenNov 4, 2026

Weakness typeCWE-22Path traversal

How to fix

Update

http4k http4k6.62.0.0-ee or later

Vendor advisories

github.com/http4k/http4k/security/advisories/GHSA-wq4x-r858-gmmj

Affected products

Product	Affected versions	Fixed in
http4k http4k	v < 6.62.0.0-ee	6.62.0.0-ee

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