UBUNTU-CVE-2025-47911
The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service (DoS) if an attacker provides specially crafted HTML content.
02 / AFFECTED SOFTWARE
Affected packages
2 explicit affected versions
1 explicit affected versions
5 explicit affected versions
16 explicit affected versions
74 explicit affected versions
4 explicit affected versions
21 explicit affected versions
2 explicit affected versions
4 explicit affected versions
5 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service (DoS) if an attacker provides specially crafted HTML content.
05 / REFERENCES
Further evidence
- https://github.com/golang/go/issues/75682
- https://github.com/golang/vulndb/issues/4440
- https://go.dev/cl/709876
- https://groups.google.com/g/golang-announce/c/jnQcOYpiR2c
- https://pkg.go.dev/vuln/GO-2026-4440
- https://ubuntu.com/security/CVE-2025-47911
- https://ubuntu.com/security/notices/USN-8089-1
- https://ubuntu.com/security/notices/USN-8089-2
- https://ubuntu.com/security/notices/USN-8089-3
- https://www.cve.org/CVERecord?id=CVE-2025-47911