Common Weakness Enumeration

CWE-601

Allowed

URL Redirection to Untrusted Site ('Open Redirect')

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.

2305 vulnerabilities reference this CWE, most recent first.

CVE-2026-42195 (GCVE-0-2026-42195)

Vulnerability from cvelistv5 – Published: 2026-05-08 21:22 – Updated: 2026-05-13 17:47
VLAI
Title
Unvalidated gitlab URL parameter redirects OAuth authorize step to attacker-controlled host
Summary
draw.io is a configurable diagramming and whiteboarding application. Prior to version 29.7.9, the draw.io client accepts a ?gitlab= URL parameter that overrides the GitLab server URL used during OAuth sign-in. A crafted link causes the user's click on draw.io's "Authorize in GitLab" dialog to open a popup on the attacker-controlled host instead of gitlab.com. This can lead to credential fishing and session state token exfiltration. This issue has been patched in version 29.7.9.
Severity
3.4 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version
jgraph drawio Affected: < 29.7.9
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CVE-2026-41844 (GCVE-0-2026-41844)

Vulnerability from cvelistv5 – Published: 2026-06-09 03:50 – Updated: 2026-06-27 21:00
VLAI
Title
Spring Framework Open Redirect in Spring MVC and WebFlux
Summary
A Spring MVC or Spring WebFlux application which configures a mapping for "/**" where the view name is not explicitly specified allows an attacker to craft a link resulting in a 302 redirect to an arbitrary external host via the redirect: prefix. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.
Severity
4.2 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-601 - URL Redirection to Untrusted Site (Open Redirect)
Assigner
References
Impacted products
Vendor Product Version
Spring Spring Framework Affected: 7.0.0 , < 7.0.7.1 (custom)
Affected: 6.2.0 , < 6.2.18.1 (custom)
Affected: 6.1.0 , < 6.1.28 (custom)
Affected: 5.3.0 , < 5.3.49 (custom)
Create a notification for this product.
Show details on NVD website
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CVE-2026-41706 (GCVE-0-2026-41706)

Vulnerability from cvelistv5 – Published: 2026-06-09 23:47 – Updated: 2026-06-27 21:27
VLAI
Title
Open Redirect When Using CookieRequestCache
Summary
Spring Security's CookieRequestCache and CookieServerRequestCache store the pre-authentication request URL in a browser cookie so that users can be redirected back to their intended destination after a successful login. In affected versions, the full absolute URL is stored in the cookie and is used without validation as the post-login redirect target. Affected versions: Spring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5.
Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-601 - URL Redirection to Untrusted Site (Open Redirect)
Assigner
References
Impacted products
Vendor Product Version
Spring Spring Security Affected: 5.7.0 , < 5.7.24 (custom)
Affected: 5.8.0 , < 5.8.26 (custom)
Affected: 6.3.0 , < 6.3.17 (custom)
Affected: 6.4.0 , < 6.4.17 (custom)
Affected: 6.5.0 , < 6.5.10.2 (custom)
Affected: 7.0.0 , < 7.0.5.1 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-41670 (GCVE-0-2026-41670)

Vulnerability from cvelistv5 – Published: 2026-05-07 03:00 – Updated: 2026-05-07 13:44
VLAI
Title
Admidio: SAML Response Sent to Unvalidated Assertion Consumer Service URL from AuthnRequest
Summary
Admidio is an open-source user management solution. Prior to version 5.0.9, the SAML IdP implementation in Admidio's SSO module uses the AssertionConsumerServiceURL value directly from incoming SAML AuthnRequest messages as the destination for the SAML response, without validating it against the registered ACS URL (smc_acs_url) stored in the database for the corresponding service provider client. An attacker who knows the Entity ID of a registered SP client can craft a SAML AuthnRequest with an arbitrary AssertionConsumerServiceURL, causing the IdP to send the signed SAML response -- containing user identity attributes (login name, email, roles, profile fields) -- to an attacker-controlled URL. This issue has been patched in version 5.0.9.
Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-20 - Improper Input Validation
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Vendor Product Version
Admidio admidio Affected: < 5.0.9
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-41569 (GCVE-0-2026-41569)

Vulnerability from cvelistv5 – Published: 2026-06-02 20:30 – Updated: 2026-06-03 14:29
VLAI
Title
authentik: WS-Federation wreply origin bypass can exfiltrate signed login responses to attacker-controlled endpoints
Summary
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.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Vendor Product Version
goauthentik authentik Affected: < 2026.2.3
Create a notification for this product.
Show details on NVD website
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CVE-2026-41513 (GCVE-0-2026-41513)

Vulnerability from cvelistv5 – Published: 2026-05-12 16:43 – Updated: 2026-05-13 12:43
VLAI
Title
Horilla: Open Redirect via Unvalidated `next` Parameter in Notification Endpoints
Summary
Horilla is an HR and CRM software. In 1.5.0, the notification endpoints trust the unvalidated next parameter and redirect users to arbitrary external URLs. This allows an attacker to turn trusted application links into phishing or social-engineering redirects.
Severity
4.8 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Vendor Product Version
horilla horilla-hr Affected: <= 1.5.0
Create a notification for this product.
Show details on NVD website
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CVE-2026-41479 (GCVE-0-2026-41479)

Vulnerability from cvelistv5 – Published: 2026-06-22 20:35 – Updated: 2026-06-23 15:51
VLAI
Title
Authlib OAuth 2.0 authorization endpoint open redirects to attacker-controlled redirect_uri on unsupported response_type
Summary
Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.10 and 1.7.1, Authlib's OAuth 2.0 authorization endpoint can be turned into an unauthenticated open redirect when a request uses an unsupported response_type and supplies an attacker-controlled redirect_uri. The vulnerable behavior happens before client lookup and before any redirect URI validation. As a result, an attacker does not need a valid client registration, an authenticated user, or any prior state. A single request to the authorization endpoint is enough to obtain a 302 Location response to an arbitrary attacker-controlled URL. This vulnerability is fixed in 1.6.10 and 1.7.1.
Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Vendor Product Version
authlib authlib Affected: < 1.6.10
Affected: = 1.7.0
Create a notification for this product.
Show details on NVD website
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CVE-2026-41226 (GCVE-0-2026-41226)

Vulnerability from cvelistv5 – Published: 2026-04-30 06:08 – Updated: 2026-05-01 06:48
VLAI
Summary
Open redirect vulnerability exists in Multiple laser printers and MFPs which implement Ricoh Web Image Monitor. When accessing a specially crafted URL, the user may be redirected to an arbitrary website. As a result, the user may become a victim of a phishing attack.
Severity
4.7 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-601 - URL redirection to untrusted site ('Open Redirect')
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-41126 (GCVE-0-2026-41126)

Vulnerability from cvelistv5 – Published: 2026-04-21 23:22 – Updated: 2026-04-22 14:16
VLAI
Title
BigBlueButton has Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL"
Summary
BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have an Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL." Version 3.0.24 has adjusted the handling of requests with incorrect checksum so that the default logoutURL is used. No known workarounds are available.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-41106 (GCVE-0-2026-41106)

Vulnerability from cvelistv5 – Published: 2026-07-02 22:18 – Updated: 2026-07-14 19:36 Exclusively Hosted Service
VLAI
Title
Microsoft 365 Copilot Elevation of Privilege Vulnerability
Summary
Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.
Severity
9.3 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Date Public
2026-07-02 14:00
Show details on NVD website
To clipboard 

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Mitigation MIT-5
Implementation

Strategy: Input Validation

  • Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
  • When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
  • Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
  • Use a list of approved URLs or domains to be used for redirection.
Mitigation
Architecture and Design

Use an intermediate disclaimer page that provides the user with a clear warning that they are leaving the current site. Implement a long timeout before the redirect occurs, or force the user to click on the link. Be careful to avoid XSS problems (CWE-79) when generating the disclaimer page.

Mitigation MIT-21.2
Architecture and Design

Strategy: Enforcement by Conversion

  • When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
  • For example, ID 1 could map to "/login.asp" and ID 2 could map to "http://www.example.com/". Features such as the ESAPI AccessReferenceMap [REF-45] provide this capability.
Mitigation
Architecture and Design

Ensure that no externally-supplied requests are honored by requiring that all redirect requests include a unique nonce generated by the application [REF-483]. Be sure that the nonce is not predictable (CWE-330).

Mitigation MIT-6
Architecture and Design Implementation

Strategy: Attack Surface Reduction

  • Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.
  • Many open redirect problems occur because the programmer assumed that certain inputs could not be modified, such as cookies and hidden form fields.
Mitigation MIT-29
Operation

Strategy: Firewall

Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].

CAPEC-178: Cross-Site Flashing

An attacker is able to trick the victim into executing a Flash document that passes commands or calls to a Flash player browser plugin, allowing the attacker to exploit native Flash functionality in the client browser. This attack pattern occurs where an attacker can provide a crafted link to a Flash document (SWF file) which, when followed, will cause additional malicious instructions to be executed. The attacker does not need to serve or control the Flash document. The attack takes advantage of the fact that Flash files can reference external URLs. If variables that serve as URLs that the Flash application references can be controlled through parameters, then by creating a link that includes values for those parameters, an attacker can cause arbitrary content to be referenced and possibly executed by the targeted Flash application.

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