What is RHSA-2026:37435?

RHSA-2026:37435 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: golang security, bug fix, and enhancement update

Which CVE IDs does RHSA-2026:37435 cover?

RHSA-2026:37435 covers the following CVE IDs: CVE-2026-39821, CVE-2026-39822. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:37435?

RHSA-2026:37435 has a CVSS v3 base score of 8.2, published by Red Hat Product Security.

RHSA-2026:37435HighCVSS 8.2

Red Hat Security Advisory: golang security, bug fix, and enhancement update

Vendor

Red Hat Product Security

Published

July 9, 2026

Last Modified

July 17, 2026

🔗 CVE IDs covered (2)

CVE-2026-39821 →CVE-2026-39822 →

📋 Description

CVE-2026-39821 — golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing CVE-2026-39822 — os: golang: Go os.Root: Symlink following vulnerability allows directory traversal

🔗 References (6)

selfhttps://access.redhat.com/errata/RHSA-2026:37435
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2480756
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2498152
externalhttps://issues.redhat.com/browse/RHEL-193476
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_37435.json