Is CVE-2026-39826 in the CISA KEV catalog?

No. CVE-2026-39826 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-39826?

CVE-2026-39826 has a CVSS v3 base score of 6.1 (Moderate).

What is the EPSS score for CVE-2026-39826?

CVE-2026-39826 has an EPSS score of 0.37% (29th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-39826?

Upgrade golang1 on rocky 8 to 26-main@x86_64 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2026-39826

MEDIUM

6.1

CVSS v3

NVD

Description

If a trusted template author were to write a <script> tag containing an empty 'type' attribute or a 'type' attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into the <script> block.

CWE-116

How to fix

Remediation Available

golang1Rocky

Fixed in:26-main@x86_64RHSA-2026:23264

Fixed in:26-main@noarchRHSA-2026:23264

Fixed in:25-main@aarch64RHSA-2026:23262

Fixed in:25-main@srcRHSA-2026:23262

Fixed in:25-main@x86_64RHSA-2026:23262

Fixed in:25-main@noarchRHSA-2026:23262

Fixed in:26-main@aarch64RHSA-2026:23264

Fixed in:26-main@srcRHSA-2026:23264

golang1Red Hat / RHEL

Fixed in:25-main@aarch64RHSA-2026:23262

Fixed in:25-main@srcRHSA-2026:23262

Fixed in:25-main@x86_64RHSA-2026:23262

Fixed in:25-main@noarchRHSA-2026:23262

Fixed in:26-main@aarch64RHSA-2026:23264

Fixed in:26-main@srcRHSA-2026:23264

Fixed in:26-main@x86_64RHSA-2026:23264

Fixed in:26-main@noarchRHSA-2026:23264

Go Programming LanguageWindows application

Affected:1.26.0 1.26.3Fixed in:1.26.3https://go.dev

Affected:1.25.10Fixed in:1.25.10https://go.dev

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

0.37%probability of exploitation in 30 days

29thpercentile

Low risk: more likely to be exploited than 29% of all known CVEs.

References

Patch2

Vendor Advisory1

pkg.go.dev

Release Notes1

groups.google.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.