Linux · Red Hat · Security advisory · July 11, 2026

RHSA-2026:37435: Security update for 8 packages

RHSA-2026:37435, released July 11, 2026, fixes 3 CVEs across 8 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent
CVEs closed
3
1 rated Critical
Exploited
0
None reported
Highest CVSS
10.0
Base score, 0 to 10
Highest EPSS
0.0183
79th percentile

Priority of the 3 CVEs

Patch now 0 Urgent 1 High 1 Routine 1

Fixed package versions

ProductReleaseFixed in
go-toolsetRHEL 90:1.26.5-1.el9_8
golangRHEL 90:1.26.5-1.el9_8
golang-binRHEL 90:1.26.5-1.el9_8
golang-docsRHEL 90:1.26.5-1.el9_8
golang-miscRHEL 90:1.26.5-1.el9_8
golang-raceRHEL 90:1.26.5-1.el9_8
golang-srcRHEL 90:1.26.5-1.el9_8
golang-testsRHEL 90:1.26.5-1.el9_8

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Urgent CVE-2026-39821 Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna10.0 0.0183 None reported
High CVE-2026-39822 Root escape via symlink plus trailing slash in os8.2 0.0023 None reported
Routine CVE-2026-42505 Invoking Encrypted Client Hello privacy leak in crypto/tls5.3 0.0038 None reported
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