# golang.org/x/net/html (Go) vulnerabilities

Source: https://junglewise.ai/threats/technologies/golang-org-x-net-html  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/golang-org-x-net-html.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in golang.org/x/net/html (Go): 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-78661, was published on 27 October 2026. 1 vulnerability in the last four weeks, up from none in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 1
- Last 90 days: 1
- All time: 3 (0 critical, 0 exploited in the wild)

## About golang.org/x/net/html (Go)

Go standard library package for HTML parsing and manipulation.

## Latest golang.org/x/net/html (Go) vulnerabilities

- [CVE-2026-78661: Go HTML parser quadratic time complexity in text node coalescing](https://junglewise.ai/threats/cve-2026-78661-when-coalescing-adjacent-text-nodes-in-addtext-and-fosterparent) (info, published 27 Oct 2026)
- [CVE-2025-47911: GO-2026-4440 - Quadratic parsing complexity in golang.org/x/net/html](https://junglewise.ai/threats/cve-2025-47911-golang-org-x-net-html-has-a-quadratic-parsing-complexity-issue) (low, CVSS 3.1, published 5 Feb 2026)
- [CVE-2024-45338: GO-2024-3333 - Non-linear parsing of case-insensitive content in golang.org/x/net/html](https://junglewise.ai/threats/cve-2024-45338-non-linear-parsing-of-case-insensitive-content-in-golang-org-x) (medium, CVSS 4, published 18 Dec 2024)

## Most severe golang.org/x/net/html (Go) vulnerabilities

- [CVE-2024-45338: GO-2024-3333 - Non-linear parsing of case-insensitive content in golang.org/x/net/html](https://junglewise.ai/threats/cve-2024-45338-non-linear-parsing-of-case-insensitive-content-in-golang-org-x) (medium, CVSS 4, published 18 Dec 2024)
- [CVE-2025-47911: GO-2026-4440 - Quadratic parsing complexity in golang.org/x/net/html](https://junglewise.ai/threats/cve-2025-47911-golang-org-x-net-html-has-a-quadratic-parsing-complexity-issue) (low, CVSS 3.1, published 5 Feb 2026)
- [CVE-2026-78661: Go HTML parser quadratic time complexity in text node coalescing](https://junglewise.ai/threats/cve-2026-78661-when-coalescing-adjacent-text-nodes-in-addtext-and-fosterparent) (info, published 27 Oct 2026)

## Vulnerabilities per week

1 vulnerability in the last four weeks, up from none in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 1 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Go technologies

- [github.com/mattermost/mattermost-server (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server): 297 vulnerabilities
- [github.com/mattermost/mattermost-server/v6 (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v6): 222 vulnerabilities
- [github.com/mattermost/mattermost/server/v8 (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v8): 207 vulnerabilities
- [github.com/mattermost/mattermost-server/v5 (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v5): 199 vulnerabilities
- [stdlib (Go)](https://junglewise.ai/threats/technologies/go-stdlib): 178 vulnerabilities
- [github.com/siyuan-note/siyuan/kernel (Go)](https://junglewise.ai/threats/technologies/github-com-siyuan-note-siyuan-kernel): 160 vulnerabilities
- [code.gitea.io/gitea (Go)](https://junglewise.ai/threats/technologies/code-gitea-io-gitea): 126 vulnerabilities
- [code.vikunja.io/api (Go)](https://junglewise.ai/threats/technologies/code-vikunja-io-api): 91 vulnerabilities
- [gogs.io/gogs (Go)](https://junglewise.ai/threats/technologies/gogs-io-gogs): 81 vulnerabilities
- [github.com/traefik/traefik/v2 (Go)](https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v2): 78 vulnerabilities
- [github.com/traefik/traefik (Go)](https://junglewise.ai/threats/technologies/github-com-traefik-traefik): 75 vulnerabilities
- [github.com/usememos/memos (Go)](https://junglewise.ai/threats/technologies/github-com-usememos-memos): 75 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "golang.org/x/net/html (Go) vulnerabilities", https://junglewise.ai/threats/technologies/golang-org-x-net-html, 13 November 2026.