Vulnerability/
https://seclists.org/oss-sec/2026/q4/407

https://seclists.org/oss-sec/2026/q4/407: Vulnerabilities in golang.org/x/net

Published Oct 27, 2026

Updated

Affected Software

1 affected component

go/golang.org/x/net

Frequently Asked Questions

What input pattern can cause excessive resource use?

HTML containing many short text runs separated by ignored end tags, such as "a" tags, can trigger quadratic allocations and byte copies while text nodes are coalesced.

What component must process the crafted input for the issue to occur?

The affected behavior occurs during HTML parsing, specifically when adjacent text nodes are coalesced in addText or fosterParent. Rendering alone is not identified as the trigger for this issue.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

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