PatchSiren cyber security CVE debrief
CVE-2026-40464 Nokia CVE debrief
The CVE-2026-40464 record describes a stored XSS vulnerability in NSP workflow applications due to insufficient validation or encoding of user-controlled input. An authenticated attacker with access to the workflow application could embed harmful code that runs when another user views the content. Administrators and users of NSP workflow applications should verify their configurations and take defensive actions to mitigate potential XSS attacks. This CVE record was published on 2026-08-31T07:17:43.750Z and has not been modified since then. The official CVE Program record and NIST NVD detail page provide additional context.
- Vendor
- Nokia
- Product
- NSP
- CVSS
- Unknown
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-08-31
- Original CVE updated
- 2026-08-31
- Advisory published
- 2026-08-31
- Advisory updated
- 2026-08-31
Who should care
Administrators and users of NSP workflow applications should be aware of this vulnerability and take necessary precautions to mitigate potential XSS attacks. They should verify their configurations, review user authentication and authorization mechanisms, and implement compensating controls to prevent exploitation. Additionally, security teams and vulnerability management teams should prioritize verifying NSP workflow application configurations and user authentication mechanisms to prevent potential attacks. This includes reviewing logs for suspicious activity and ensuring that all user-controlled input is validated and encoded properly. Security teams should also consider implementing monitoring and detection mechanisms to identify potential attacks. Furthermore, asset inventory and change management processes should be reviewed to ensure that all NSP workflow applications are accounted for and up-to-date with the latest security patches and mitigations. By taking these steps, organizations can reduce the risk of exploitation and minimize the impact of a potential attack. It is also essential to track exceptions, retest remediated assets, and close the item only after evidence is documented. This will help ensure that all necessary steps are taken to prevent exploitation and minimize the impact of a potential attack. The goal is to ensure that all stakeholders are aware of the vulnerability and take necessary actions to prevent exploitation. This includes reviewing and updating incident response plans, conducting vulnerability assessments, and implementing additional security controls as needed. By prioritizing these efforts, organizations can reduce the risk of exploitation and protect their NSP workflow applications from potential attacks. Finally, it is crucial to review and update security policies and procedures to ensure that they align with the latest security best practices and guidelines for NSP workflow applications. This will help ensure that all stakeholders are aware of their roles and responsibilities in preventing exploitation and minimizing the impact of a potential attack. By working together, organizations can reduce the risk of exploitation,
Technical summary
NSP workflow applications are vulnerable to stored XSS attacks due to insufficient validation or encoding of user-controlled input. An authenticated attacker with access to the workflow application could embed malicious code that executes when another user views the content. To mitigate this vulnerability, it is essential to verify NSP workflow application user authentication and input validation mechanisms. The CVE description and official records indicate that NSP workflow applications are susceptible to stored XSS attacks, emphasizing the need for thorough validation and encoding of user-controlled input.
Defensive priority
Authenticated users with workflow application access could potentially embed malicious code, so verifying NSP workflow application user authentication and input validation is recommended.
Recommended defensive actions
- Verify NSP workflow application user authentication and authorization mechanisms
- Validate and encode user-controlled input in NSP workflow applications
- Monitor NSP workflow application logs for suspicious activity
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
Evidence notes
The CVE description indicates NSP is vulnerable to stored XSS due to insufficient validation or encoding of user-controlled input in a workflow application. Official CVE and NVD records provide some context.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-40464 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-40464
CVE Program - Official CVE Program record with source-provided CVE metadata.
-
CVE-2026-40464 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-40464
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
-
Source reference
Unverified legacy reference
URL: https://www.nokia.com/we-are-nokia/security/product-security-advisory/cve-2026-40464/
b48c3b8f-639e-4c16-8725-497bc411dad0
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.