CVE-2026-25680
Invoking denial of service when parsing arbitrary HTML in golang.org/x/net/html
Description
Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service.
INFO
Published Date :
May 22, 2026, 3:01 p.m.
Last Modified :
May 22, 2026, 3:01 p.m.
Remotely Exploit :
No
Source :
Go
Affected Products
The following products are affected by CVE-2026-25680
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Implement resource limits for HTML parsing.
- Sanitize all user-supplied HTML content.
- Update parsing libraries to the latest version.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-25680 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-25680 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 22, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H -
New CVE Received by [email protected]
May. 22, 2026
Action Type Old Value New Value Added Description Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service. Added Reference https://go.dev/cl/781702 Added Reference https://go.dev/issue/79573 Added Reference https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8 Added Reference https://pkg.go.dev/vuln/GO-2026-5028