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.
2631 vulnerabilities reference this CWE, most recent first.
CVE-2026-93649 (GCVE-0-2026-93649)
Vulnerability from cvelistv5 – Published: 2026-10-15 13:28 – Updated: 2026-10-16 18:46
VLAI
EPSS
VEX
Summary
In the Eclipse Adoptium website (adoptium.net), in every deployment built from commit 0b24ea1 (2025-06-18) up to the fix in commit cbb53cf (2026-09-24), the post-download page /[locale]/download takes a download URL from the "link" query parameter and automatically navigates to it with a meta http-equiv="refresh". The URL is checked against a list of trusted prefixes using String.startsWith() on the raw string, while the browser applies RFC 3986 dot-segment normalisation before navigating, so a value such as https://github.com/adoptium/temurin/../../attacker/malware/releases/download/v1/jdk.exe passes the check but resolves to an attacker-controlled repository. A victim who follows a crafted adoptium.net link is shown the genuine "Thank you for downloading Eclipse Temurin" page while their browser downloads a binary of the attacker's choosing
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 18:46 UTC
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Adoptium Temurin |
Affected:
0 , < 1f9753c
(git)
|
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CVE-2026-92216 (GCVE-0-2026-92216)
Vulnerability from cvelistv5 – Published: 2026-09-16 01:45 – Updated: 2026-09-16 19:00
VLAI
EPSS
VEX
Title
a2ui-project a2ui Binder generic-binder.ts openUrl redirect
Summary
A vulnerability was found in a2ui-project a2ui up to 0.10.7. Affected by this issue is the function openUrl of the file renderers/web_core/src/v0_9/rendering/generic-binder.ts of the component Binder. The manipulation results in open redirect. It is possible to launch the attack remotely. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 18:53 UTC
CWE
- CWE-601 - Open Redirect
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/404461 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/404461/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-92216 | third-party-advisory |
| https://vuldb.com/submit/934110 | third-party-advisory |
| https://github.com/a2ui-project/a2ui/issues/2296 | issue-tracking |
| https://github.com/a2ui-project/a2ui/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| a2ui-project | a2ui |
Affected:
0.10.0
Affected: 0.10.1 Affected: 0.10.2 Affected: 0.10.3 Affected: 0.10.4 Affected: 0.10.5 Affected: 0.10.6 Affected: 0.10.7 cpe:2.3:a:a2ui-project:a2ui:*:*:*:*:*:*:*:* |
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CVE-2026-92116 (GCVE-0-2026-92116)
Vulnerability from cvelistv5 – Published: 2026-10-12 20:04 – Updated: 2026-10-16 17:55
VLAI
EPSS
VEX
Title
Apache Allura: OAuth1 missing callback validation
Summary
OAuth1 callback validation vulnerability in Apache Allura.
This issue affects Apache Allura: through 1.21.0.
Users are recommended to upgrade to version 1.22.0, which fixes the issue.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 17:55 UTC
CWE
- CWE-601 - URL redirection to untrusted site ('open redirect')
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Allura |
Affected:
0 , ≤ 1.21.0
(semver)
|
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CVE-2026-91772 (GCVE-0-2026-91772)
Vulnerability from cvelistv5 – Published: 2026-09-15 01:20 – Updated: 2026-09-24 14:22
VLAI
EPSS
VEX
Title
Halo through 2.26.1 Open Redirect via Unvalidated URI Parameter
Summary
Halo through 2.26.1 contains an open redirect vulnerability in the anonymous thumbnail endpoint that fails to validate the uri query parameter. Attackers can craft malicious links on the trusted Halo domain that redirect visitors to arbitrary external sites, enabling phishing attacks and abuse of redirect-based trust relationships.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 16:56 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/halo-dev/halo/issues/10247 | issue-tracking |
| https://github.com/halo-dev/halo/blob/v2.26.1/app… | technical-description |
| https://github.com/halo-dev/halo/blob/v2.26.1/app… | technical-description |
| https://github.com/halo-dev/halo | product |
| https://www.vulncheck.com/advisories/halo-through… | third-party-advisory |
Date Public
2026-08-16 00:00
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CVE-2026-90453 (GCVE-0-2026-90453)
Vulnerability from cvelistv5 – Published: 2026-09-11 21:51 – Updated: 2026-10-02 20:56
VLAI
EPSS
VEX
Title
Open Redirect in Malcolm
Summary
A file-upload handler redirects the authenticated client's browser to a URL taken directly from that same request's Referer header, without validating it against the application's own origin. This allows an authenticated attacker to craft a request that causes another user's browser to be redirected to an arbitrary external destination after completing an upload.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 12:54 UTC
CWE
- CWE-601 - URL redirection to untrusted site ('open redirect')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://raw.githubusercontent.com/cisagov/CSAF/de… | government-resourcevendor-advisory |
| https://www.cisa.gov/news-events/ics-advisories/i… |
Impacted products
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CVE-2026-89307 (GCVE-0-2026-89307)
Vulnerability from cvelistv5 – Published: 2026-09-15 15:23 – Updated: 2026-09-15 17:31
VLAI
EPSS
VEX
Title
HTML injection allows open redirection in WordPress theme design-scuole-wordpress-theme
Summary
The "Firma Circolare" feature in the "Design Scuole Italia" WordPress theme allows an authenticated attacker to inject arbitrary HTML via the sign parameter, enabling forced redirection of visiting users to an attacker-controlled URL (Stored HTML Injection / Open Redirect).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 17:16 UTC
CWE
- CWE-601 - URL redirection to untrusted site ('open redirect')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/italia/design-scuole-wordpress-theme | product |
| https://www.acn.gov.it/portale/w/rilevate-vulnera… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Developers Italia | design-scuole-wordpress-theme |
Affected:
1.0 , ≤ 2.17.3
(semver)
cpe:2.3:a:developers_italia:design-scuole-wordpress-theme:*:*:*:*:*:*:*:* |
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CVE-2026-89122 (GCVE-0-2026-89122)
Vulnerability from cvelistv5 – Published: 2026-10-13 00:27 – Updated: 2026-10-13 13:28
VLAI
EPSS
VEX
Title
Open Redirect Vulnerability in SAP NetWeaver Enterprise Portal
Summary
SAP NetWeaver Enterprise Portal does not sufficiently validate input to a certain portal component. An unauthenticated attacker could craft a malicious link that, when clicked by a victim, loads attacker-controlled content within the trusted application context. Successful exploitation could allow the attacker to track user information and deface parts of the rendered page, resulting in a low impact on confidentiality and integrity with no impact on availability.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 12:51 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SAP_SE | SAP NetWeaver Enterprise Portal |
Affected:
EP-RUNTIME 7.50
|
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CVE-2026-88887 (GCVE-0-2026-88887)
Vulnerability from cvelistv5 – Published: 2026-09-10 13:05 – Updated: 2026-09-29 22:10
VLAI
EPSS
VEX
Title
Renovate before 44.11.2 Credential Exfiltration via Link Header
Summary
Renovate is a dependency update automation tool. When listing tags/digests for a container image, Renovate follows pagination links supplied by the remote registry in the HTTP Link header and attaches the registry credentials to the follow-up request without verifying that the pagination URL has the same origin as the original registry. A malicious or compromised container registry can therefore specify a Link header pointing to an attacker-controlled host and receive the credentials Renovate uses for that registry. Exploitation requires that the target has container (Docker) dependencies and is already interacting with the malicious or compromised registry. This is fixed in Renovate 44.11.2 (npm and renovate/renovate images), Mend Renovate CE/EE 15.4.0 and the mend-renovate-enterprise-edition Helm chart 10.4.0; the same-origin check can be disabled with RENOVATE_X_DOCKER_PAGINATION_ALLOW_CROSS_ORIGIN.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 14:08 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/renovatebot/renovate/security/… | vendor-advisory |
| https://www.vulncheck.com/advisories/renovate-bef… | third-party-advisory |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| renovatebot | renovate |
Affected:
0 , < 44.11.2
(semver)
Unaffected: 44.11.2 (semver) |
|
| mend | renovate-ce |
Affected:
0 , < 15.4.0
(semver)
Unaffected: 15.4.0 (semver) |
|
| mend | renovate-ee-server |
Affected:
0 , < 15.4.0
(semver)
Unaffected: 15.4.0 (semver) |
|
| mend | renovate-ee-worker |
Affected:
0 , < 15.4.0
(semver)
Unaffected: 15.4.0 (semver) |
|
| mend | mend-renovate-ce |
Affected:
0 , < 15.4.0
(semver)
Unaffected: 15.4.0 (semver) |
|
| mend | mend-renovate-enterprise-edition |
Affected:
0 , < 10.4.0
(semver)
Unaffected: 10.4.0 (semver) |
Date Public
2026-08-27 00:00
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CVE-2026-88882 (GCVE-0-2026-88882)
Vulnerability from cvelistv5 – Published: 2026-09-10 13:05 – Updated: 2026-09-29 22:10
VLAI
EPSS
VEX
Title
Renovate before 44.11.2 Credential Exfiltration via Link Header
Summary
Renovate is a dependency update automation tool. In versions before 44.11.2 (and Mend Renovate CE/EE images and charts before 15.4.0, and mend-renovate-enterprise-edition helm chart before 10.4.0), when listing new package versions from a NuGet registry Renovate follows pagination URLs supplied by the registry in the HTTP `Link` header without verifying that the target has the same origin as the configured registry. Registry credentials are attached to the request for the 'next' page, so a malicious or compromised NuGet registry can return a `Link` header pointing at an attacker-controlled server and cause Renovate to send the registry credentials to that server. Exploitation requires the remote registry to be malicious or compromised; such a registry would normally already have received the credentials on the initial request, so the issue primarily allows the credentials to be delivered to an additional, attacker-chosen host. The fix restricts pagination to the same origin; the previous behaviour can be re-enabled with the RENOVATE_X_NUGET_PAGINATION_ALLOW_CROSS_ORIGIN option.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 14:09 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/renovatebot/renovate/security/… | vendor-advisory |
| https://www.vulncheck.com/advisories/renovate-bef… | third-party-advisory |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| renovatebot | renovate |
Affected:
0 , < 44.11.2
(semver)
Unaffected: 44.11.2 (semver) |
|
| mend | renovate-ce |
Affected:
0 , < 15.4.0
(semver)
Unaffected: 15.4.0 (semver) |
|
| mend | renovate-ee-server |
Affected:
0 , < 15.4.0
(semver)
Unaffected: 15.4.0 (semver) |
|
| mend | renovate-ee-worker |
Affected:
0 , < 15.4.0
(semver)
Unaffected: 15.4.0 (semver) |
|
| mend | mend-renovate-ce |
Affected:
0 , < 15.4.0
(semver)
Unaffected: 15.4.0 (semver) |
|
| mend | mend-renovate-enterprise-edition |
Affected:
0 , < 10.4.0
(semver)
Unaffected: 10.4.0 (semver) |
Date Public
2026-08-27 00:00
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CVE-2026-88881 (GCVE-0-2026-88881)
Vulnerability from cvelistv5 – Published: 2026-09-10 13:05 – Updated: 2026-09-29 22:10
VLAI
EPSS
VEX
Title
Renovate before 44.11.3 Credential Exfiltration via Link Header
Summary
Renovate, a dependency update tool, follows pagination links supplied by the GitHub server in the HTTP `Link` header when interacting with GitHub.com, GitHub Enterprise Cloud, or GitHub Enterprise Server, and sends the credentials configured for that host to the URL given as the 'next' page. Because the pagination URL is not validated against the host originally contacted, a malicious or compromised GitHub server can return a `Link` header pointing to an attacker-controlled host and cause Renovate to disclose those credentials to it. Exploitation requires that the GitHub server Renovate talks to (as the repository host or as a datasource such as github-releases, github-tags, or git-refs) is already malicious or compromised. The issue is fixed in renovate 44.11.3 (npm and renovate/renovate container images), Mend Renovate CE/EE images and the mend-renovate-ce helm chart 15.4.0, and the mend-renovate-enterprise-edition helm chart 10.4.0. There is no workaround; the pre-existing RENOVATE_X_REBASE_PAGINATION_LINKS option disables the new host check and should only be used with servers that intentionally use different pagination hosts.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 14:23 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/renovatebot/renovate/security/… | vendor-advisory |
| https://www.vulncheck.com/advisories/renovate-bef… | third-party-advisory |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| renovatebot | renovate |
Affected:
0 , < 44.11.3
(semver)
Unaffected: 44.11.3 (semver) |
|
| mend | renovate-ce |
Affected:
0 , < 15.4.0
(semver)
Unaffected: 15.4.0 (semver) |
|
| mend | renovate-ee-server |
Affected:
0 , < 15.4.0
(semver)
Unaffected: 15.4.0 (semver) |
|
| mend | renovate-ee-worker |
Affected:
0 , < 15.4.0
(semver)
Unaffected: 15.4.0 (semver) |
|
| mend | mend-renovate-ce |
Affected:
0 , < 15.4.0
(semver)
Unaffected: 15.4.0 (semver) |
|
| mend | mend-renovate-enterprise-edition |
Affected:
0 , < 10.4.0
(semver)
Unaffected: 10.4.0 (semver) |
Date Public
2026-08-27 00:00
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"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 9.2,
"baseSeverity": "CRITICAL",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE"
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
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"problemTypes": [
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"descriptions": [
{
"cweId": "CWE-601",
"description": "URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
"lang": "en",
"type": "CWE"
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"name": "GitHub Security Advisory (GHSA-w57v-h33h-835c)",
"tags": [
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"url": "https://github.com/renovatebot/renovate/security/advisories/GHSA-w57v-h33h-835c"
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{
"name": "VulnCheck Advisory: Renovate before 44.11.3 Credential Exfiltration via Link Header",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/renovate-before-44.11.3-credential-exfiltration-via-link-header-2"
}
],
"title": "Renovate before 44.11.3 Credential Exfiltration via Link Header",
"x_generator": {
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},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-88881",
"datePublished": "2026-09-10T13:05:32.249Z",
"dateReserved": "2026-09-10T11:25:34.912Z",
"dateUpdated": "2026-09-29T22:10:37.776Z",
"state": "PUBLISHED"
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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.