5.3

CVE-2026-33490

Exploit
H3 is a minimal H(TTP) framework. In versions 2.0.0-0 through 2.0.1-rc.16, the `mount()` method in h3 uses a simple `startsWith()` check to determine whether incoming requests fall under a mounted sub-application's path prefix. Because this check does not verify a path segment boundary (i.e., that the next character after the base is `/` or end-of-string), middleware registered on a mount like `/admin` will also execute for unrelated routes such as `/admin-public`, `/administrator`, or `/adminstuff`. This allows an attacker to trigger context-setting middleware on paths it was never intended to cover, potentially polluting request context with unintended privilege flags. Version 2.0.2-rc.17 contains a patch.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
H3 ≫ H3 Version2.0.1 Updaterc1 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc10 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc11 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc12 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc13 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc14 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc15 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc16 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc2 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc3 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc4 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc5 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc6 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc7 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc8 SwPlatformnode.js
H3 ≫ H3 Version2.0.1 Updaterc9 SwPlatformnode.js
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.135
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
security-advisories@github.com 3.7 2.2 1.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE-706 Use of Incorrectly-Resolved Name or Reference

The product uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere.