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Vulnerabilities

Vulnerability · 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

Published Feb 5, 2026 · catalog updated Feb 12, 2026 · The html.Parse function in

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-47911. EPSS is 0.56%. Act only if a listed version of The html.Parse function in is installed.

Gaps on this record

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

Same product and reporting

Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.56%
Remediation
Fix linked
Affected products
vendor golang.org/x/net golang.org/x/net/html 0 <0.45.0

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.

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.

  • vendor golang.org/x/net golang.org/x/net/html 0 <0.45.00 <0.45.0

How to fix CVE-2025-47911

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-2025-47911. EPSS is 0.56%. Act only if a listed version of The html.Parse function in is installed.

Which versions are affected?

Compare what you have installed with golang.org/x/net golang.org/x/net/html 0 <0.45.0 0 <0.45.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.56%. 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.

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

  • Oct 8, 2025 · referenced

    vendor: golang.org/x/net v0.45.0

    vendor: golang.org/x/net v0.45.0 full diff: https://github.com/golang/net/compare/v0.44.0...v0.45.0 From the security announcement: [security] Vulnerabilities in golang.org/x/net Hello gophers, We have tagged version v0.45.0 of golang.org/x/net in order to address two security issues. This version fixes two vulnerabilities in the golang.org/x/net/html package which could result in calls to Parse (and associated functions) executing unexpectedly slowly relative to the size of the input or never returning when encountering specific inputs. These vulnerabilities affect programs which parse untrusted HTML documents. - The parser implements the HTML specification, which contains a number of algorithms which are quadratic in complexity by design. This causes the processing time to scale non-linearly with respect to the size of the input for some HTML documents. We have imposed a de…
    https://github.com/moby/moby/commit/ef5feb49923d1ed45a33318cee232fe8ccb487fc

Timeline

Detection, updates, and resolution for this record.

  1. Feb 5, 2026 · EUVD

    Detected

    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.

  2. Feb 12, 2026 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-47911

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-47911

    30-day exploitation probability 0.56%

    first.org
  • EUVDVulnerability recordEUVD-2025-206856

    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.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 6, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 3, 2026