CVE-2026-27136
MEDIUMCVSS 6.1/10EPSS 0.18%
Last modified
CVE-2026-27136 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Golang | Net | < 0.55.0 |
References
- https://go.dev/cl/781685Issue Tracking
- https://go.dev/issue/79575Issue Tracking
- https://pkg.go.dev/vuln/GO-2026-5030Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-27136?
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.
How severe is CVE-2026-27136?
CVE-2026-27136 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-27136?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
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Are you affected by CVE-2026-27136?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST