KNIME Business Hub: URL Redirection to Untrusted Site
CVE-2025-11240 is a high-severity URL redirection to untrusted site vulnerability in KNIME Business Hub from KNIME, with a CVSS 3.1 base score of 7.2 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 1.16.0 as the first without the flaw, so updating KNIME Business Hub to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.26% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update KNIME Business Hub to 1.16.0 or a later version.
- Update Business Hub to 1.16.0 or a later version.
- Read the advisory on knime.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| KNIME | KNIME Business Hub | before 1.16.0 | 1.16.0 |
| Knime | Business Hub | before 1.16.0 | 1.16.0 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- LowSome restricted data can be read.
- Integrity
- LowLimited modification of data is possible.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 5.3 | Medium | CNA (knime.com) |
| CVSS 3.1 | 7.2 | High | NVD |
Official description
An open redirect vulnerability existed in KNIME Business Hub prior to version 1.16.0. An unauthenticated remote attacker could craft a link to a legitimate KNIME Business Hub installation which, when opened by the user, redirects the user to a page of the attackers choice. This might open the possibility for fishing or other similar attacks. The problem has been fixed in KNIME Business Hub 1.16.0.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: URL Redirection to Untrusted Site
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
How developers prevent this class of flaw
- 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.
- 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 provide this capability.
- Ensure that no externally-supplied requests are honored by requiring that all redirect requests include a unique nonce generated by the application. Be sure that the nonce is not predictable (CWE-330).
More URL Redirection to Untrusted Site vulnerabilities (CWE-601)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in KNIME Business Hub
- 7.2 High severity
- 8.6 High severity
- 8.8 High severity
Recent URL Redirection to Untrusted Site vulnerabilities
- 7.1 High severity
- 9.3 Critical severity
- 9.8 Critical severity
- 9.1 Critical severity
- 7.4 High severity
- 9.0 Critical severity
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