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EUVD-2026-42317Published

Invoking Encrypted Client Hello privacy leak in crypto/tls

Recorded JSON

cve-program · CVE-2026-42505

Published

crypto/tls

https://pkg.go.dev

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Go standard library",
                    "product": "crypto/tls",
                    "collectionURL": "https://pkg.go.dev",
                    "packageName": "crypto/tls",
                    "versions": [
                        {
                            "version": "0",
                            "lessThan": "1.25.12",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "1.26.0-0",
                            "lessThan": "1.26.5",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "1.27.0-0",
                            "lessThan": "1.27.0-rc.2",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "programRoutines": [
                        {
                            "name": "clientHelloMsg.marshalMsg"
                        },
                        {
                            "name": "Conn.Handshake"
                        },
                        {
                            "name": "Conn.HandshakeContext"
                        },
                        {
                            "name": "Conn.Read"
                        },
                        {
                            "name": "Conn.Write"
                        },
                        {
                            "name": "Dial"
                        },
                        {
                            "name": "DialWithDialer"
                        },
                        {
                            "name": "Dialer.Dial"
                        },
                        {
                            "name": "Dialer.DialContext"
                        },
                        {
                            "name": "QUICConn.HandleData"
                        },
                        {
                            "name": "QUICConn.SendSessionTicket"
                        },
                        {
                            "name": "QUICConn.Start"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-42317

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Jul 8, 2026, 3:46:33 PM

dateUpdated: Jul 8, 2026, 7:38:17 PM

24 related source bulletins · separate from aliases

RHSA-2026:91249: Red Hat Security Advisory: Red Hat AI Base Images 3.5.5 (Neuron)

CVE-2025-69418 · CVE-2026-6653 · CVE-2026-11979 · CVE-2026-13346 · CVE-2026-25679 · CVE-2026-25680 · CVE-2026-25681 · CVE-2026-27136 · CVE-2026-27137 · CVE-2026-27138 · CVE-2026-27139 · CVE-2026-27141 · CVE-2026-27142 · CVE-2026-27145 · CVE-2026-28390 · CVE-2026-31790 · CVE-2026-32280 · CVE-2026-32281 · CVE-2026-32282 · CVE-2026-32288 · CVE-2026-32289 · CVE-2026-33811 · CVE-2026-33814 · CVE-2026-34182 · CVE-2026-34183 · CVE-2026-39820 · CVE-2026-39822 · CVE-2026-39823 · CVE-2026-39825 · CVE-2026-39826 · CVE-2026-39836 · CVE-2026-42499 · CVE-2026-42502 · CVE-2026-42504 · CVE-2026-42505 · CVE-2026-42506 · CVE-2026-42507 · CVE-2026-45445 · CVE-2026-45447 · CVE-2026-74860 · CVE-2026-86138 · CVE-2026-86140 · CVE-2026-86142 · CVE-2026-86143 · CVE-2026-86144 · CVE-2026-86145 · CVE-2026-89090 · CVE-2026-89161 · CVE-2026-103111 · CVE-2026-114406

WID-SEC-W-2026-2239: Golang Go: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen

CVE-2026-39822 · CVE-2026-42505

SUSE-SU-2026:22641-1: Security update for go1.26-openssl

CVE-2026-39822 · CVE-2026-42505

msrc_CVE-2026-42505: Invoking Encrypted Client Hello privacy leak in crypto/tls

CVE-2026-42505

openSUSE-SU-2026:21321-1: Security update for go1.26-openssl

CVE-2026-39822 · CVE-2026-42505

openSUSE-SU-2026:21341-1: Security update for go1.26

CVE-2026-39822 · CVE-2026-42505

RHSA-2026:36510: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

CVE-2026-39822 · CVE-2026-42505

openSUSE-SU-2026:11232-1: go1.26-1.26.5-1.1 on GA media

CVE-2026-39822 · CVE-2026-42505

openSUSE-SU-2026:11471-1: tekton-cli-0.46.0-1.1 on GA media

CVE-2026-42505

RHSA-2026:37436: Red Hat Security Advisory: golang security, bug fix, and enhancement update

CVE-2026-39821 · CVE-2026-39822 · CVE-2026-42505

SUSE-SU-2026:22643-1: Security update for go1.25

CVE-2026-25679 · CVE-2026-27139 · CVE-2026-27142 · CVE-2026-39822 · CVE-2026-42505

openSUSE-SU-2026:11216-1: mihomo-1.19.28-1.1 on GA media

CVE-2026-42505

SUSE-SU-2026:22656-1: Security update for go1.26

CVE-2026-39822 · CVE-2026-42505

RHSA-2026:36477: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

CVE-2026-39822 · CVE-2026-42505

SUSE-SU-2026:22638-1: Security update for go1.25-openssl

CVE-2025-61732 · CVE-2025-68121 · CVE-2026-25679 · CVE-2026-27139 · CVE-2026-27140 · CVE-2026-27142 · CVE-2026-27143 · CVE-2026-27144 · CVE-2026-27145 · CVE-2026-32280 · CVE-2026-32281 · CVE-2026-32282 · CVE-2026-32283 · CVE-2026-32288 · CVE-2026-32289 · CVE-2026-33811 · CVE-2026-33814 · CVE-2026-39817 · CVE-2026-39819 · CVE-2026-39820 · CVE-2026-39822 · CVE-2026-39823 · CVE-2026-39825 · CVE-2026-39826 · CVE-2026-39836 · CVE-2026-42499 · CVE-2026-42501 · CVE-2026-42504 · CVE-2026-42505 · CVE-2026-42507

RHSA-2026:54773: Red Hat Security Advisory: Red Hat build of OpenTelemetry 3.10.2 release

CVE-2026-39822 · CVE-2026-41178 · CVE-2026-42505 · CVE-2026-46600 · CVE-2026-56852

openSUSE-SU-2026:11798-1: go-passbolt-cli-0.5.2-1.1 on GA media

CVE-2026-42505

RHSA-2026:37435: Red Hat Security Advisory: golang security, bug fix, and enhancement update

CVE-2026-39821 · CVE-2026-39822 · CVE-2026-42505

RHSA-2026:91248: Red Hat Security Advisory: Red Hat AI Base Images 3.4.6 (Neuron)

CVE-2025-69418 · CVE-2026-6653 · CVE-2026-11979 · CVE-2026-13346 · CVE-2026-25679 · CVE-2026-25680 · CVE-2026-25681 · CVE-2026-27136 · CVE-2026-27137 · CVE-2026-27138 · CVE-2026-27139 · CVE-2026-27141 · CVE-2026-27142 · CVE-2026-27145 · CVE-2026-28390 · CVE-2026-31790 · CVE-2026-32280 · CVE-2026-32281 · CVE-2026-32282 · CVE-2026-32288 · CVE-2026-32289 · CVE-2026-33811 · CVE-2026-33814 · CVE-2026-34182 · CVE-2026-34183 · CVE-2026-39820 · CVE-2026-39822 · CVE-2026-39823 · CVE-2026-39825 · CVE-2026-39826 · CVE-2026-39836 · CVE-2026-42499 · CVE-2026-42502 · CVE-2026-42504 · CVE-2026-42505 · CVE-2026-42506 · CVE-2026-42507 · CVE-2026-44172 · CVE-2026-45445 · CVE-2026-45447 · CVE-2026-74860 · CVE-2026-86138 · CVE-2026-86140 · CVE-2026-86142 · CVE-2026-86143 · CVE-2026-86144 · CVE-2026-86145 · CVE-2026-89090 · CVE-2026-89161 · CVE-2026-103111 · CVE-2026-114406

RHSA-2026:66364: Red Hat Security Advisory: git-lfs security update

CVE-2026-33818 · CVE-2026-42505 · CVE-2026-42507 · CVE-2026-56860 · CVE-2026-56862

openSUSE-SU-2026:21319-1: Security update for go1.25-openssl

CVE-2025-61732 · CVE-2025-68121 · CVE-2026-25679 · CVE-2026-27139 · CVE-2026-27140 · CVE-2026-27142 · CVE-2026-27143 · CVE-2026-27144 · CVE-2026-27145 · CVE-2026-32280 · CVE-2026-32281 · CVE-2026-32282 · CVE-2026-32283 · CVE-2026-32288 · CVE-2026-32289 · CVE-2026-33811 · CVE-2026-33814 · CVE-2026-39817 · CVE-2026-39819 · CVE-2026-39820 · CVE-2026-39822 · CVE-2026-39823 · CVE-2026-39825 · CVE-2026-39826 · CVE-2026-39836 · CVE-2026-42499 · CVE-2026-42501 · CVE-2026-42504 · CVE-2026-42505 · CVE-2026-42507

openSUSE-SU-2026:11212-1: go1.25-1.25.12-1.1 on GA media

CVE-2026-39822 · CVE-2026-42505

RHSA-2026:38995: Red Hat Security Advisory: go-toolset:rhel8 security, bug fix, and enhancement update

CVE-2026-27145 · CVE-2026-39821 · CVE-2026-39822 · CVE-2026-42504 · CVE-2026-42505 · CVE-2026-42507

openSUSE-SU-2026:21324-1: Security update for go1.25

CVE-2026-25679 · CVE-2026-27139 · CVE-2026-27142 · CVE-2026-39822 · CVE-2026-42505

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-42505

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-201

Original publisher date fields

published: 2026-07-08T17:17:21.497

lastModified: 2026-10-25T17:10:00.197

2 source CPE criteria · context only
  • cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
  • cpe:2.3:a:golang:go:1.27:rc1:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GO-2026-5856

Published

stdlib

Go

SEMVER · introduced 0 → fixed 1.25.12 → introduced 1.26.0-0 → fixed 1.26.5 → introduced 1.27.0-0 → fixed 1.27.0-rc.2

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 7 Nov 21:58 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current

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