Skip to main content
CVE-2026-42502VulnerabilityPublished Updated

foreign content · Invoking Incorrect Handling of HTML Elements

Affects MicrosoftSource GCVE Database

0
Compare
Authoritative record:CVE-2026-42502· Medium 6.1

Not known to be exploited · CVSS 6.1 Medium : upgrade to 0.55.0 when convenient.

Data as of 31 Oct 2026, 08:36 UTC

CVSS 3.1 base score
6.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.55.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade golang.org/x/net/html to 0.55.0.

Affected software

ProductAffectedFixed in
golang.org/x/netgolang.org/x/net/htmlAffected
  • <0.55.0
Fixed in
  • 0.55.0
Gogolang.org/x/net/htmlpkg:golang/golang.org/x/net/htmlOther threatsAffected
  • =0
Fixed in–
Gogolang.org/x/net/htmlpkg:golang/golang.org/x/net/htmlOther threatsAffected
  • <0.55.0
Fixed in
  • 0.55.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

A vulnerability identified as CVE-2026-42502 involves incorrect handling of HTML elements in foreign content within the golang.org/x/net/html package. The issue is associated with Microsoft and affects version 3.0 of the product. No detailed technical or impact information is provided beyond the identification of the flaw.

References

Community reviews

Loading reviews…