RLSA-2026:22120

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Source
https://errata.rockylinux.org/RLSA-2026:22120
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:22120.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:22120
Upstream
Published
2026-08-26T00:08:24.047074Z
Modified
2026-08-26T00:30:03.326690986Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Important: golang security update
Details

The golang packages provide the Go programming language compiler.

Security Fix(es):

  • net/mail: golang: net/mail: Denial of Service via pathological email address parsing (CVE-2026-42499)

  • cmd/go: golang: Go command (cmd/go): Integrity bypass due to checksum validation flaw via malicious module proxy (CVE-2026-42501)

  • html/template: golang: Go html/template: Cross-Site Scripting via improper URL escaping in meta tag content (CVE-2026-39823)

  • cmd/go: golang: Go 'go bug' command: Arbitrary file overwrite via symlink attack (CVE-2026-39819)

  • net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGSMAXFRAME_SIZE frame (CVE-2026-33814)

  • net/mail: golang: Go net/mail: Denial of Service via crafted email inputs (CVE-2026-39820)

  • net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811)

  • net/http/httputil: golang: net/http/httputil: ReverseProxy forwards hidden query parameters, potentially bypassing security controls (CVE-2026-39825)

  • cmd/go: golang: Go tool pack: Arbitrary file write via malicious archive extraction (CVE-2026-39817)

  • html/template: golang: html/template: Cross-site scripting due to incorrect script tag escaping (CVE-2026-39826)

  • net: golang: Go net package: Denial of Service via NUL byte in Dial and LookupPort on Windows (CVE-2026-39836)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Database specific 
{
    "source_advisory": "RHSA-2026:22120",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "license": "CC-BY-4.0"
}
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:10 / golang

Package

Name
golang
Purl
pkg:rpm/rocky-linux/golang?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:1.26.3-4.el10_2
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:22120.json"