# CVE-2026-60403: Oracle TimesTen In-Memory Database denial of service in Kubernetes Operator

Source: https://junglewise.ai/threats/cve-2026-60403-oracle-timesten-in-memory-database-denial-of-service-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-21. Updated: 2026-07-21  
License: CC BY 4.0 with a link back

CVE-2026-60403 · Severity: medium · CVSS 6.5 · Published 2026-07-21

A vulnerability exists in the Kubernetes Operator component of Oracle TimesTen In-Memory Database, a high-performance database used for real-time applications. An attacker with low-level access to the network can exploit this flaw to cause the database to hang or crash repeatedly. This results in a complete denial of service, disrupting business operations and application availability.

Technologies: [Oracle TimesTen In-Memory Database](https://junglewise.ai/threats/technologies/timesten-in-memory-database). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-60403 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-60403 being exploited in the wild.

**How severe is CVE-2026-60403?** Medium severity, with a CVSS score of 6.5, published 21 July 2026.

**Which products and versions are affected?** Oracle TimesTen In-Memory Database 26.1.1.1.0.

**Is there a fix for CVE-2026-60403?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-60403 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-60403?** Check whether you run Oracle TimesTen In-Memory Database at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A vulnerability in the Kubernetes Operator component of Oracle TimesTen In-Memory Database (version 26.1.1.1.0) allows for a denial of service (DoS). The flaw is easily exploitable by a low-privileged attacker with network access via HTTPS. Successful exploitation enables the attacker to cause a hang or a frequently repeatable crash of the database instance. The vulnerability is tracked as CVE-2026-60403 with a CVSS 3.1 base score of 6.5, specifically impacting system availability. Users are advised to refer to the Oracle Critical Patch Update for July 2026 for remediation guidance.

## Affected products

- Oracle TimesTen In-Memory Database 26.1.1.1.0

## Timeline

- 2026-07-21: disclosed
- 2026-07-21: advisory: Oracle July 2026 Critical Patch Update published.

## References

- [https://www.oracle.com/security-alerts/cpujul2026.html](https://www.oracle.com/security-alerts/cpujul2026.html)

## Related threats

- [Oracle TimesTen In-Memory Database information disclosure in Kubernetes Operator](https://junglewise.ai/threats/cve-2026-87354-vulnerability-in-oracle-timesten-in-memory-database-component)
- [Oracle TimesTen In-Memory Database privilege escalation](https://junglewise.ai/threats/cve-2026-101522-vulnerability-in-oracle-timesten-in-memory-database-component)
- [Oracle TimesTen In-Memory Database denial of service in ttcserver](https://junglewise.ai/threats/cve-2026-60411-oracle-timesten-in-memory-database-denial-of-service-in-ttcserver)
- [Oracle TimesTen In-Memory Database partial DoS in Kubernetes Operator](https://junglewise.ai/threats/cve-2026-60410-oracle-timesten-in-memory-database-partial-dos-in-kubernetes)
- [Oracle TimesTen In-Memory Database compromise in Kubernetes Operator](https://junglewise.ai/threats/cve-2026-60409-oracle-timesten-in-memory-database-compromise-in-kubernetes)