# CVE-2026-25680: Invoking denial of service when parsing arbitrary HTML in golang.org/x/net/html

CVE-2026-25680 is fixed in 40 products on 1 platform, first by DEBIAN-CVE-2026-25680, released May 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-25680
- Priority: Routine
- CVSS: 6.5 (Moderate)
- EPSS: 0.0033
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 22, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25680

## Description

Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | alloy opensuse-leap 16.0 | 1.17.0-160000.1.1 | [OPENSUSE-SU-2026:21251-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21251-1.md) | Jul 7, 2026 |
| Linux | alloy sles 15.7 | 1.17.1-150700.15.23.1 | [SUSE-SU-2026:2824-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2824-1.md) | Jul 9, 2026 |
| Linux | alloy sles 16.0 | 1.17.0-160000.1.1 | [SUSE-SU-2026:22575-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22575-1.md) | Jul 7, 2026 |
| Linux | amazon-cloudwatch-agent amzn 2023 | 1.300067.1-1.amzn2023 | [ALAS2023-2026-1896](https://patchblox.com/security/data/fix/linux/alas2023-2026-1896.md) | Jun 22, 2026 |
| Linux | buildah sles 15.6 | 1.35.5-150500.3.62.1 | [SUSE-SU-2026:2733-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2733-1.md) | Jul 2, 2026 |
| Linux | buildah sles 15.7 | 1.35.5-150500.3.62.1 | [SUSE-SU-2026:2733-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2733-1.md) | Jul 2, 2026 |
| Linux | cni-plugins amzn 2023 | 1.7.1-1.amzn2023.0.7 | [ALAS2023-2026-1888](https://patchblox.com/security/data/fix/linux/alas2023-2026-1888.md) | Jun 22, 2026 |
| Linux | cni-plugins-debuginfo amzn 2023 | 1.7.1-1.amzn2023.0.7 | [ALAS2023-2026-1888](https://patchblox.com/security/data/fix/linux/alas2023-2026-1888.md) | Jun 22, 2026 |
| Linux | cni-plugins-debugsource amzn 2023 | 1.7.1-1.amzn2023.0.7 | [ALAS2023-2026-1888](https://patchblox.com/security/data/fix/linux/alas2023-2026-1888.md) | Jun 22, 2026 |
| Linux | containerd amzn 2023 | 2.2.4-1.amzn2023.0.2 | [ALAS2023-2026-1847](https://patchblox.com/security/data/fix/linux/alas2023-2026-1847.md) | Jun 22, 2026 |
| Linux | containerd-debuginfo amzn 2023 | 2.2.4-1.amzn2023.0.2 | [ALAS2023-2026-1847](https://patchblox.com/security/data/fix/linux/alas2023-2026-1847.md) | Jun 22, 2026 |
| Linux | containerd-debugsource amzn 2023 | 2.2.4-1.amzn2023.0.2 | [ALAS2023-2026-1847](https://patchblox.com/security/data/fix/linux/alas2023-2026-1847.md) | Jun 22, 2026 |
| Linux | containerd-stress amzn 2023 | 2.2.4-1.amzn2023.0.2 | [ALAS2023-2026-1847](https://patchblox.com/security/data/fix/linux/alas2023-2026-1847.md) | Jun 22, 2026 |
| Linux | containerd-stress-debuginfo amzn 2023 | 2.2.4-1.amzn2023.0.2 | [ALAS2023-2026-1847](https://patchblox.com/security/data/fix/linux/alas2023-2026-1847.md) | Jun 22, 2026 |
| Linux | containerized-data-importer sles 15.7 | 1.64.0-150700.9.14.1 | [SUSE-SU-2026:4209-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4209-1.md) | Sep 16, 2026 |
| Linux | containerized-data-importer1.65 opensuse-leap 16.0 | 1.65.0-160000.3.1 | [OPENSUSE-SU-2026:21824-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21824-1.md) | Sep 9, 2026 |
| Linux | cosign opensuse-leap 16.0 | 3.1.1-160000.1.1 | [OPENSUSE-SU-2026:21281-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21281-1.md) | Jul 10, 2026 |
| Linux | cosign sles 15.6 | 3.1.1-150400.3.45.1 | [SUSE-SU-2026:2827-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2827-1.md) | Jul 9, 2026 |
| Linux | cosign sles 15.7 | 3.1.1-150400.3.45.1 | [SUSE-SU-2026:2827-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2827-1.md) | Jul 9, 2026 |
| Linux | cosign sles 16.0 | 3.1.1-160000.1.1 | [SUSE-SU-2026:22613-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22613-1.md) | Jul 10, 2026 |
| Linux | credentials-fetcher amzn 2023 | 2.0.3-1.amzn2023.0.1 | [ALAS2023-2026-1885](https://patchblox.com/security/data/fix/linux/alas2023-2026-1885.md) | Jun 22, 2026 |
| Linux | docker amzn 2023 | 25.0.16-1.amzn2023.0.2 | [ALAS2023-2026-1835](https://patchblox.com/security/data/fix/linux/alas2023-2026-1835.md) | Jun 11, 2026 |
| Linux | docker-debuginfo amzn 2023 | 25.0.16-1.amzn2023.0.2 | [ALAS2023-2026-1835](https://patchblox.com/security/data/fix/linux/alas2023-2026-1835.md) | Jun 11, 2026 |
| Linux | docker-debugsource amzn 2023 | 25.0.16-1.amzn2023.0.2 | [ALAS2023-2026-1835](https://patchblox.com/security/data/fix/linux/alas2023-2026-1835.md) | Jun 11, 2026 |
| Linux | ecs-init amzn 2023 | 1.105.0-1.amzn2023 | [ALAS2023-2026-1902](https://patchblox.com/security/data/fix/linux/alas2023-2026-1902.md) | Jul 6, 2026 |
| Linux | git-lfs amzn 2023 | 3.7.1-81.amzn2023 | [ALAS2023-2026-1889](https://patchblox.com/security/data/fix/linux/alas2023-2026-1889.md) | Jun 22, 2026 |
| Linux | git-lfs-debuginfo amzn 2023 | 3.7.1-81.amzn2023 | [ALAS2023-2026-1889](https://patchblox.com/security/data/fix/linux/alas2023-2026-1889.md) | Jun 22, 2026 |
| Linux | git-lfs-debugsource amzn 2023 | 3.7.1-81.amzn2023 | [ALAS2023-2026-1889](https://patchblox.com/security/data/fix/linux/alas2023-2026-1889.md) | Jun 22, 2026 |
| Linux | golang-golang-x-net Debian 14 | 1:0.55.0-1 | [DEBIAN-CVE-2026-25680](https://patchblox.com/security/data/fix/linux/debian-cve-2026-25680.md) | May 22, 2026 |
| Linux | govulncheck-vulndb opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | [OPENSUSE-SU-2026:21483-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21483-1.md) | Jul 30, 2026 |
| Linux | grafana opensuse-leap 16.0 | 11.6.14+security04-bp160.2.1 | [OPENSUSE-SU-2026:20984-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20984-1.md) | Jun 15, 2026 |
| Linux | grafana sles 15.7 | 12.4.5-150200.3.91.1 | [SUSE-SU-2026:3718-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3718-1.md) | Aug 24, 2026 |
| Linux | hauler opensuse-leap 16.0 | 2.0.1-bp160.1.1 | [OPENSUSE-SU-2026:21262-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21262-1.md) | Jul 6, 2026 |
| Linux | kubevirt sles 15.7 | 1.7.4-150700.3.30.1 | [SUSE-SU-2026:3203-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3203-1.md) | Jul 23, 2026 |
| Linux | kubevirt-1.6 sles 15.7 | 1.6.6-150700.15.17.1 | [SUSE-SU-2026:3630-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3630-1.md) | Aug 17, 2026 |
| Linux | kubevirt1.8 opensuse-leap 16.0 | 1.8.4-160000.1.1 | [OPENSUSE-SU-2026:21590-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21590-1.md) | Aug 18, 2026 |
| Linux | lux opensuse-leap 16.0 | 0.24.1-bp160.1.1 | [OPENSUSE-SU-2026:21367-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21367-1.md) | Jul 17, 2026 |
| Linux | mcphost opensuse-leap 16.0 | 0.34.0-160000.2.1 | [OPENSUSE-SU-2026:21120-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21120-1.md) | Jun 20, 2026 |
| Linux | mcphost sles 16.0 | 0.34.0-160000.2.1 | [SUSE-SU-2026:22193-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22193-1.md) | Jun 20, 2026 |
| Linux | neonmodem opensuse-leap 16.0 | 1.0.7+git0.346d1d3-bp160.1.1 | [OPENSUSE-SU-2026:20963-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20963-1.md) | Jun 12, 2026 |
| Linux | nerdctl amzn 2023 | 2.2.2-1.amzn2023.0.3 | [ALAS2023-2026-1788](https://patchblox.com/security/data/fix/linux/alas2023-2026-1788.md) | Jun 8, 2026 |
| Linux | rclone opensuse-leap 16.0 | 1.74.4-bp160.1.1 | [OPENSUSE-SU-2026:21436-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21436-1.md) | Jul 22, 2026 |
| Linux | runfinch-finch amzn 2023 | 1.17.1-1.amzn2023.0.3 | [ALAS2023-2026-1886](https://patchblox.com/security/data/fix/linux/alas2023-2026-1886.md) | Jun 22, 2026 |
| Linux | soci-snapshotter amzn 2023 | 0.14.1-1.amzn2023.0.1 | [ALAS2023-2026-1884](https://patchblox.com/security/data/fix/linux/alas2023-2026-1884.md) | Jun 22, 2026 |
| Linux | trivy opensuse-leap 16.0 | 0.71.0-160000.1.1 | [OPENSUSE-SU-2026:20956-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20956-1.md) | Jun 11, 2026 |
| Linux | yq amzn 2023 | 4.53.3-14.amzn2023 | [ALAS2023-2026-1887](https://patchblox.com/security/data/fix/linux/alas2023-2026-1887.md) | Jun 22, 2026 |
| Linux | yq-debuginfo amzn 2023 | 4.53.3-14.amzn2023 | [ALAS2023-2026-1887](https://patchblox.com/security/data/fix/linux/alas2023-2026-1887.md) | Jun 22, 2026 |
| Linux | yq-debugsource amzn 2023 | 4.53.3-14.amzn2023 | [ALAS2023-2026-1887](https://patchblox.com/security/data/fix/linux/alas2023-2026-1887.md) | Jun 22, 2026 |

---

Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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