CVE-2026-93003

Published Oct 20, 2026 Modified Oct 20, 2026 CWE-444

Description

The Web add-on's HTTP server searches the entire request packet for header fields instead of stopping at the end of the header section. A header field name placed in the request body is therefore reported to the server as though it were a header, which lets a client control request framing decisions it should not be able to reach.

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Weakness Type (CWE)

CWE-444 CWE-444

References

Frequently Asked Questions

What is CVE-2026-93003? +
The Web add-on's HTTP server searches the entire request packet for header fields instead of stopping at the end of the header section. A header field name placed in the request body is therefore reported to the server as though it were a header, which lets a client control request framing decisions it should not be able to reach.
How do I check if I'm vulnerable to CVE-2026-93003? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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