CVE-2026-41569
authentik is an open-source identity provider. Prior to version 2026.2.3, the WS-Federation provider validates the user-supplied wreply para
CVSS
6.1
Medio
EPSS
0.2%
p9
KEV
—
Exploit Today
3
0-100
Publicado: 2 jun 2026 · Última mod.: 22 jul 2026 · CWE-601
0.2%EPSS · 30 días0.2%
2026-07-112026-08-08
authentik is an open-source identity provider. Prior to version 2026.2.3, the WS-Federation provider validates the user-supplied wreply parameter using a raw string prefix check rather than proper URL parsing. An attacker who can craft a login link can supply a wreply value on a different origin that passes the check (e.g. https://portal.example.com.evil.tld/), causing the victim's browser to POST the signed WS-Federation login response to attacker-controlled infrastructure. This issue has been patched in version 2026.2.3.
CVECVSSEPSSKEVRExplotTítuloVis.
CVE-2026-597174.3 MED12.2%
——4Home Assistant is open source home automation software focused on local control and privacy. Prior to 2026.6.1, the Android Companion app is vulnerable to an open redirect. The app passes the URL fragment from a homeassistant://invite deep link into the onboarding flow without ever displaying the destination hostname. Because no screen in the invitation or onboarding flow shows the parsed server URL before onboarding commits to it, a victim has no way to distinguish a legitimate invite from a malicious one. An attacker can craft an invite so that a single tap on the legitimate-looking "Connect to my Home Assistant server" button opens their /auth/authorize endpoint in the URL-less onboarding WebView, presenting a look-alike login page that captures the victim's credentials. Since invitations are intended to onboard brand-new users, targets are especially unlikely to notice the substitution. This issue is fixed in version 2026.6.1.2dCVE-2026-54215—19.0%
——6Tobit Laboratories AG TeamDavid's Webbox contains an open redirect vulnerability via the
“replyUrl” parameter. An attacker can exploit this vulnerability to
craft a URL within the application that, when visited, redirects the
user’s browser to an arbitrary third-party site. This can be abused for
phishing attacks, where users receive a trusted domain link but are
redirected to a phishing website. This issue affects TeamDavid through Rollout 524.2dCVE-2026-54214—26.1%
——8Tobit Laboratories AG TeamDavid's Webbox application is vulnerable to HTTP header injection through the
“cType” URL parameter, which allows arbitrary modification of the
Content-Type header in HTTP responses. Because the parameter does not
properly restrict control characters such as URL-encoded newlines
(“%0a”) or colons, attackers can inject additional headers including
extra Location headers into the server’s response. This results e.g. in
an open redirect vulnerability. This issue affects TeamDavid through Rollout 524.2dCVE-2026-12071—26.1%
——8The Webbox of TeamDavid by Tobit Laboratories AG constructs redirect URLs using user-supplied input,
which is appended to the redirect target in a 302 HTTP response. By
using URL-encoded characters such as “%2e” (representing a dot), an
attacker can manipulate the portion of the URL following the top-level
domain (TLD). If a similar, registerable TLD exists (for example, if
“.com” is the application’s domain, and “.company” is available for
registration), an attacker can craft a URL to redirect users to a
malicious “.company” domain. By using URL-encoded line feeds, it becomes
possible to insert arbitrary response headers in the server's HTTP
response.
This issue affects TeamDavid through Rollout 524.3dCVE-2026-66829—54.6%
——16URL Redirection to Untrusted Site ('Open Redirect') vulnerability in the HTML5 scrubber in rrrene html_sanitize_ex allows a remote attacker to force visitors of a page to navigate to a site of the attacker's choosing via a <meta http-equiv="refresh"> element in sanitized HTML. HtmlSanitizeEx.html5/1 keeps attacker-supplied <meta> elements in its output. A meta element acts on the whole document rather than on the fragment it was embedded in, so it can also declare document-wide directives such as Content-Security-Policy.
This is not cross-site scripting. Browsers do not navigate a meta refresh to a javascript: URL, so the uppercase JAVASCRIPT: filter bypass yields no script execution and none was demonstrated.
This issue affects html_sanitize_ex: from 0.3.1 before 1.5.3.2dCVE-2026-66370—29.3%
——9URL Redirection to Untrusted Site ('Open Redirect') vulnerability in the HTML5 scrubber in rrrene html_sanitize_ex allows an unauthenticated remote attacker to retarget a form already on the rendering page and receive whatever the victim submits, including credentials, via the form and formaction attributes on an <input> element in sanitized HTML. HTML's form attribute associates an input with any form on the page by its id even when the input sits outside that form, and formaction on a submit control overrides the owning form's action. Neither attribute receives a scheme check, so an absolute cross-origin URL survives sanitizing.
No script executes. The scrubber allows neither form nor button, so the attacker cannot introduce a form of their own and the rendering page must already contain a form carrying an id.
This issue affects html_sanitize_ex: from 0.3.1 before 1.5.3.2d