Common Weakness Enumeration
CWE-601
AllowedURL Redirection to Untrusted Site ('Open Redirect')
Abstraction: Base · Status: Draft
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
2448 vulnerabilities reference this CWE, most recent first.
CVE-2026-32824 (GCVE-0-2026-32824)
Vulnerability from cvelistv5 – Published: 2026-07-20 16:14 – Updated: 2026-07-20 17:44
VLAI
EPSS
VEX
Title
dataCycle User API Password Reset And Confirmation Flows Trust Attacker- Controlled Redirect Targets
Summary
dataCycle is a data management system for centrally storing, managing, searching, finding, and distributing data. In dataCycle-CORE, the module handling core processing and framework rules, before and including version 25.07.3, a low-privileged authenticated API user can supply `forwardToUrl` and `redirectUrl` values when triggering password reset or confirmation flows. Those values are then embedded into the outgoing email workflow without host allowlisting. This creates two related abuse paths:
- password reset or confirmation links can be sent to a victim with the token already attached to an attacker-controlled `forwardToUrl`
- after a legitimate password reset completes, the browser is redirected to attacker-controlled `redirectUrl`
In practice, this can be used for phishing, token capture, confirmation hijacking, or steering a victim from a trusted email
into an attacker domain. This is patched in version 26.06.08.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 17:44 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/datacycle-engine/dataCycle-COR… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| datacycle-engine | dataCycle-CORE |
Affected:
<= 25.07.3
|
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CVE-2026-32235 (GCVE-0-2026-32235)
Vulnerability from cvelistv5 – Published: 2026-03-12 18:35 – Updated: 2026-03-12 20:46
VLAI
EPSS
VEX
Title
@backstage/plugin-auth-backend: OAuth redirect URI allowlist bypass
Summary
Backstage is an open framework for building developer portals. Prior to 0.27.1, the experimental OIDC provider in @backstage/plugin-auth-backend is vulnerable to a redirect URI allowlist bypass. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents and configured allowedRedirectUriPatterns are affected. A specially crafted redirect URI can pass the allowlist validation while resolving to an attacker-controlled host. If a victim approves the resulting OAuth consent request, their authorization code is sent to the attacker, who can exchange it for a valid access token. This requires victim interaction and that one of the experimental features is explicitly enabled, which is not the default. This vulnerability is fixed in 0.27.1.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-12 20:38 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/backstage/backstage/security/a… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| @backstage | plugin-auth-backend |
Affected:
< 0.27.1
|
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CVE-2026-32113 (GCVE-0-2026-32113)
Vulnerability from cvelistv5 – Published: 2026-03-31 17:39 – Updated: 2026-04-01 13:56
VLAI
EPSS
VEX
Title
Discourse: Open redirect via `sso_destination_url` cookie in `enter`
Summary
Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, the enter action in StaticController reads the sso_destination_url cookie and redirects to it with allow_other_host: true without validating the destination URL. While this cookie is normally set during legitimate DiscourseConnect Provider flows with cryptographically validated SSO payloads, cookies are client-controlled and can be set by attackers. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-01 13:56 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/discourse/discourse/security/a… | x_refsource_CONFIRM |
| https://github.com/discourse/discourse/commit/080… | x_refsource_MISC |
| https://meta.discourse.org/t/using-discourse-as-a… | x_refsource_MISC |
| https://meta.discourse.org/t/use-discourse-as-an-… | exploit |
Impacted products
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CVE-2026-31982 (GCVE-0-2026-31982)
Vulnerability from cvelistv5 – Published: 2026-07-09 07:22 – Updated: 2026-08-11 12:23
VLAI
EPSS
VEX
Title
Open Redirect in SAML Single Sign-On in Guardian/CMC before 26.2.0
Summary
An Open Redirect vulnerability was discovered in the SAML Single Sign-On functionality due to insufficient validation of a user-controlled redirection parameter. An unauthenticated attacker can craft a request to the SAML sign-in endpoint and poison the cached SAML redirection for other users who subsequently initiate SAML Single Sign-On, enabling phishing and credential-theft attacks, as well as disrupting SAML authentication for all affected users.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 12:41 UTC
CWE
- CWE-601 - URL redirection to untrusted site ('open redirect')
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Nozomi Networks | Guardian |
Affected:
0 , < 26.2.0
(semver)
cpe:2.3:a:nozomi_networks:guardian:*:*:*:*:*:*:*:* |
|
| Nozomi Networks | CMC |
Affected:
0 , < 26.2.0
(semver)
cpe:2.3:a:nozomi_networks:cmc:*:*:*:*:*:*:*:* |
|
| Siemens | RUGGEDCOM APE1808 |
Affected:
0 , < *
(custom)
|
Date Public
2026-07-07 07:00
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CVE-2026-31819 (GCVE-0-2026-31819)
Vulnerability from cvelistv5 – Published: 2026-03-10 21:18 – Updated: 2026-03-11 15:59
VLAI
EPSS
VEX
Title
Sylius has an Open Redirect via Referer Header
Summary
Sylius is an Open Source eCommerce Framework on Symfony. CurrencySwitchController::switchAction(), ImpersonateUserController::impersonateAction() and StorageBasedLocaleSwitcher::handle() use the HTTP Referer header directly when redirecting. The attack requires the victim to click a legitimate application link placed on an attacker-controlled page. The browser automatically sends the attacker's site as the Referer, and the application redirects back to it. This can be used for phishing or credential theft, as the redirect originates from a trusted domain. The severity varies by endpoint; public endpoints require no authentication and are trivially exploitable, while admin-only endpoints require an authenticated session but remain vulnerable if an admin follows a link from an external source such as email or chat. The issue is fixed in versions: 1.9.12, 1.10.16, 1.11.17, 1.12.23, 1.13.15, 1.14.18, 2.0.16, 2.1.12, 2.2.3 and above.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 15:53 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Sylius/Sylius/security/advisor… | x_refsource_CONFIRM |
Impacted products
1 product
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CVE-2026-29105 (GCVE-0-2026-29105)
Vulnerability from cvelistv5 – Published: 2026-03-19 22:58 – Updated: 2026-03-20 18:09
VLAI
EPSS
VEX
Title
SuiteCRM has Unauthenticated Open Redirect in Leads WebToLead Capture
Summary
SuiteCRM is an open-source, enterprise-ready Customer Relationship Management (CRM) software application. Prior to versions 7.15.1 and 8.9.3, SuiteCRM contains an unauthenticated open redirect vulnerability in the WebToLead capture functionality. A user-supplied POST parameter is used as a redirect destination without validation, allowing attackers to redirect victims to arbitrary external websites. This vulnerability allows attackers to abuse the trusted SuiteCRM domain for phishing and social engineering attacks by redirecting users to malicious external websites. Versions 7.15.1 and 8.9.3 patch the issue.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-20 16:58 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/SuiteCRM/SuiteCRM/security/adv… | x_refsource_CONFIRM |
| https://docs.suitecrm.com/admin/releases/7.15.x | x_refsource_MISC |
Impacted products
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CVE-2026-29067 (GCVE-0-2026-29067)
Vulnerability from cvelistv5 – Published: 2026-03-07 15:12 – Updated: 2026-03-09 18:27
VLAI
EPSS
VEX
Title
ZITADEL: Account Takeover Due to Improper Instance Validation in V2 Login
Summary
ZITADEL is an open source identity management platform. From version 4.0.0-rc.1 to 4.7.0, a potential vulnerability exists in ZITADEL's password reset mechanism in login V2. ZITADEL utilizes the Forwarded or X-Forwarded-Host header from incoming requests to construct the URL for the password reset confirmation link. This link, containing a secret code, is then emailed to the user. This issue has been patched in version 4.7.1.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-09 17:39 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/zitadel/zitadel/security/advis… | x_refsource_CONFIRM |
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CVE-2026-28681 (GCVE-0-2026-28681)
Vulnerability from cvelistv5 – Published: 2026-03-06 04:35 – Updated: 2026-03-06 16:07
VLAI
EPSS
VEX
Title
IRRd: web UI host header injection allows password reset poisoning via attacker-controlled email links
Summary
Internet Routing Registry daemon version 4 is an IRR database server, processing IRR objects in the RPSL format. From version 4.4.0 to before version 4.4.5 and from version 4.5.0 to before version 4.5.1, an attacker can manipulate the HTTP Host header on a password reset or account creation request. The confirmation link in the resulting email can then point to an attacker-controlled domain. Opening the link in the email is sufficient to pass the token to the attacker, who can then use it on the real IRRD instance to take over the account. A compromised account can then be used to modify RPSL objects maintained by the account's mntners and perform other account actions. If the user had two-factor authentication configured, which is required for users with override access, an attacker is not able to log in, even after successfully resetting the password. This issue has been patched in versions 4.4.5 and 4.5.1.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-06 15:58 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/irrdnet/irrd/security/advisori… | x_refsource_CONFIRM |
| https://github.com/irrdnet/irrd/commit/8408e0f1b9… | x_refsource_MISC |
| https://github.com/irrdnet/irrd/commit/cf62df4a49… | x_refsource_MISC |
| https://irrd.readthedocs.io/en/stable/releases/4.4.5 | x_refsource_MISC |
| https://irrd.readthedocs.io/en/stable/releases/4.5.1 | x_refsource_MISC |
Impacted products
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CVE-2026-28512 (GCVE-0-2026-28512)
Vulnerability from cvelistv5 – Published: 2026-03-09 22:17 – Updated: 2026-03-10 14:32
VLAI
EPSS
VEX
Title
Pocket ID: OAuth redirect_uri validation bypass via userinfo/host confusion
Summary
Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. From 2.0.0 to before 2.4.0, a flaw in callback URL validation allowed crafted redirect_uri values containing URL userinfo (@) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host. This vulnerability is fixed in 2.4.0.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-10 14:32 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/pocket-id/pocket-id/security/a… | x_refsource_CONFIRM |
| https://github.com/pocket-id/pocket-id/commit/3a3… | x_refsource_MISC |
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CVE-2026-28415 (GCVE-0-2026-28415)
Vulnerability from cvelistv5 – Published: 2026-02-27 21:44 – Updated: 2026-03-02 21:55
VLAI
EPSS
VEX
Title
Gradio has Open Redirect in OAuth Flow
Summary
Gradio is an open-source Python package designed for quick prototyping. Prior to version 6.6.0, the _redirect_to_target() function in Gradio's OAuth flow accepts an unvalidated _target_url query parameter, allowing redirection to arbitrary external URLs. This affects the /logout and /login/callback endpoints on Gradio apps with OAuth enabled (i.e. apps running on Hugging Face Spaces with gr.LoginButton). Starting in version 6.6.0, the _target_url parameter is sanitized to only use the path, query, and fragment, stripping any scheme or host.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 21:55 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/gradio-app/gradio/security/adv… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| gradio-app | gradio |
Affected:
< 6.6.0
|
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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.