HIGHCVSS 7.5

CVE-2026-16405

CVE-2026-16405 updated by NVD

Modified: 2026-07-24
Sources: nvd

Summary

Information disclosure in the Networking: WebSockets component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-16405

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.