Quick answers
- Is CVE-2026-106621 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-106621 being exploited in the wild.
- How severe is CVE-2026-106621?
- Critical severity, with a CVSS score of 9.1, published 13 October 2026.
- Which products and versions are affected?
- Adobe ColdFusion. The advisory does not name versions.
- Is there a fix for CVE-2026-106621?
- Yes: fixed in ColdFusion 2025.0.14; ColdFusion 2023.0.26. Until then: Adobe recommends using the latest MySQL Java connector and updating the serial filter configuration to protect against insecure deserialization attacks, as detailed in the ColdFusion configuration documentation. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-106621 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-106621?
- Check whether you run Adobe ColdFusion. 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.
How to fix
- Fixed in: ColdFusion 2025.0.14; ColdFusion 2023.0.26
Adobe recommends using the latest MySQL Java connector and updating the serial filter configuration to protect against insecure deserialization attacks, as detailed in the ColdFusion configuration documentation.
Technical details
CVE-2026-106621 is an improper control of code generation vulnerability (CWE-94) in Adobe ColdFusion that allows privilege escalation and confidentiality/integrity compromise. The vulnerability is remotely exploitable with no privilege requirements and no user interaction needed; it affects the application's ability to safely handle dynamic code generation. The attack vector is network-based, and the advisory confirms this issue is addressed in patched versions 2025.0.14 and 2023.0.26.
Affected products
- Adobe ColdFusion
Timeline
- 2026-10-13: disclosed