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Vulnerabilities

Vulnerability · CVE-2026-25681

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree.

Published May 22, 2026 · catalog updated Jul 23, 2026 · Parsing arbitrary HTML which

Check if you run it

No confirmed exploitation is on record for CVE-2026-25681. EPSS is 0.22%. Act only if a listed version of Parsing arbitrary HTML which is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Parsing arbitrary HTML which).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.22%
Remediation
Fix linked
Affected products
cpe golang/net

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe golang/netversion unspecified

How to fix CVE-2026-25681

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-25681. EPSS is 0.22%. Act only if a listed version of Parsing arbitrary HTML which is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-1021: Improper Restriction of Rendered UI Layers or Frames. EPSS 0.22%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Related Odoo Git fixes

Quoted Community commit messages that cite this CVE. Presence of a commit is not proof that every edition or backport includes the fix. Enterprise proprietary diffs are never shown here. Timeline

  • May 22, 2026 · referenced

    vendor: golang.org/x/net v0.55.0

    vendor: golang.org/x/net v0.55.0 security changes (not used in our code) - html: escape greater-than symbol in doctype identifiers (CVE-2026-25681) - html: improve Noah's Ark clause performance (CVE-2026-25680) - html: properly render fostered elements in foreign content (CVE-2026-42502) - html: properly check namespace in "in body" any other end tag (CVE-2026-42506) - html: ignore duplicate attributes during tokenization (CVE-2026-27136) other changes: - quic: fix appendMaxDataFrame erroneously accumulating sentLimit - quic: establish a "happened-before" relationship between stream write and read - quic: fix buffer slicing when handling overlapping stream data - http2: avoid API changes when built with go1.27 security announce: https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8 full diff: https://github.com/golang/net/compare/v0.54.0...v0.55.0
    https://github.com/moby/moby/commit/c208231f468b28e69860ab004859435979e0319f

Timeline

Detection, updates, and resolution for this record.

  1. May 22, 2026 · NIST NVD

    Detected

    Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.

  2. Jul 23, 2026 · NIST NVD

    Updated

    Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.

Sources

  • CVE.orgVulnerability recordCVE-2026-25681

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-25681

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-25681

    Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.