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CVE-2026-42502

Invoking incorrect handling of HTML elements in foreign content in golang.org/x/net/html

cve-program · severity unknownEUVD CVSS 3.1 6.1 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0 · Secondary 6.1 MEDIUMosv · severity unknownFixed by golang.org/x/net 0.55.0KEV status unknown
Original advisory

cve-program · CVE-2026-42502

Published

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.

Read the publisher's advisory

euvd · EUVD-2026-31448

Published

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.

Read the publisher's advisory

nvd · CVE-2026-42502

Published

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.

Read the publisher's advisory

osv · GO-2026-5027

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

Related advisories and sources

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-42502 · CVE overview and exploitation status

EUVD-2026-31448

GHSA-wrh2-89vg-4j9g

GO-2026-5027

cve-program · CVE-2026-42502

euvd · EUVD-2026-31448

nvd · CVE-2026-42502

osv · GO-2026-5027

Related changes

Linked by CVE identifier
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An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

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