CVE-2026-39827

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 20.3% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-23.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-05-22 02:31Z3 MO AGO

Last updated

2026-05-22 18:35Z3 MO AGO

Reserved

2026-04-07

Assigning CNA

Go

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

• CWE-924Improper Enforcement of Message Integrity During Transmission in a Communication ChannelBase
• CWE-772Missing Release of Resource after Effective LifetimeBase

Data version

5.2

Document digest

8eb999d6fb331fc6bcd5b17761a86d841441c14ef7084a84d4913d99b8aff807

• go.devhttps://go.dev/issue/35127
• go.devhttps://go.dev/cl/781320
• groups.google.comhttps://groups.google.com/g/golang-announce/c/a082jnz-LvI
• pkg.go.devhttps://pkg.go.dev/vuln/GO-2026-5016