How severe is CVE-2026-39826?

CVE-2026-39826 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-39826 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-39826?

CVE-2026-39826 affects Golang Go. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-39826?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-39826 have an EU (EUVD) identifier?

Yes. CVE-2026-39826 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28426.

When was CVE-2026-39826 published?

CVE-2026-39826 was published on 2026-05-07 and last updated on 2026-06-17.

CVE-2026-39826

CVE-2026-39826 is a medium-severity vulnerability in Golang Go with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-116.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-28426
Weakness: CWE-116
Affected product: Golang Go
Published: 2026-05-07
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-39826?: 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.
How severe is CVE-2026-39826?: CVE-2026-39826 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-39826 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-39826?: CVE-2026-39826 affects Golang Go. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-39826?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-39826 have an EU (EUVD) identifier?: Yes. CVE-2026-39826 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28426.
When was CVE-2026-39826 published?: CVE-2026-39826 was published on 2026-05-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*

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