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Vulnerabilities

Vulnerability · CVE-2026-97045

Check all ancestor namespace transitions when rendering raw text in html in golang.org/x/net

Published Oct 27, 2026 · catalog updated Oct 27, 2026 · Check all ancestor namespace

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-97045. EPSS is 0.27%. Act only if a listed version of Check all ancestor namespace is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Check all ancestor namespace).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.27%
Remediation
Not established
Affected products
Go golang.org/x/net · vendor golang.org/x/net golang.org/x/net/html

In childTextNodesAreLiteral, walking up the tree previously stopped at the nearest foreign ancestor once an HTML integration point was found. However, that integration point may itself be a descendant of an element that was foster-parented into a foreign namespace (such as or fostered under ), causing a parser to resolve the subtree in a different foreign namespace upon re-parsing the rendered output. Continue walking the full ancestor chain and verify that every transition from a non-empty namespace occurs at an HTML integration point before emitting literal text.

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.

  • Go golang.org/x/net0 → 0.62.0
  • vendor golang.org/x/net golang.org/x/net/htmlversion unspecified

How to fix CVE-2026-97045

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-2026-97045. EPSS is 0.27%. Act only if a listed version of Check all ancestor namespace is installed.

Which versions are affected?

Compare what you have installed with 0 → 0.62.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.27%. 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.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 27, 2026 · OpenSSF OSV / OSV Scanner

    Detected

    In childTextNodesAreLiteral, walking up the tree previously stopped at the nearest foreign ancestor once an HTML integration point was found. However, that integration point may itself be a descendant of an element that was foster-parented into a foreign namespace (such as or fostered under ), causing a parser to resolve the subtree in a different foreign namespace upon re-parsing the rendered out

  2. Oct 27, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    golang.org/x/net fixed in 0.62.0

  3. Oct 27, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    golang.org/x/net fixed in 0.62.0

  4. Oct 27, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    In childTextNodesAreLiteral, walking up the tree previously stopped at the nearest foreign ancestor once an HTML integration point was found. However, that integration point may itself be a descendant of an element that was foster-parented into a foreign namespace (such as or fostered under ), causing a parser to resolve the subtree in a different foreign namespace upon re-parsing the rendered out

Sources

  • CVE.orgVulnerability recordCVE-2026-97045

    In childTextNodesAreLiteral, walking up the tree previously stopped at the nearest foreign ancestor once an HTML integration point was found. However, that integration point may itself be a descendant of an element that was foster-parented into a foreign namespace (such as or fos

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-97045

    30-day exploitation probability 0.27%

    first.org
  • Go Vulnerability DatabasePackage advisoryGO-2026-6866

    Check all ancestor namespace transitions when rendering raw text in html in golang.org/x/net

    osv.dev
  • OpenSSF OSV / OSV ScannerPackage advisoryGO-2026-6866

    Check all ancestor namespace transitions when rendering raw text in html in golang.org/x/net

    osv.dev

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 5, 2026
  • Go Vulnerability DatabaseOct 28, 2026
  • OpenSSF OSV / OSV ScannerOct 28, 2026
  • CVE.orgOct 28, 2026