CVE-2026-94200ImportantRevised 30 Oct

TLS 1.3 client ticket store crashed by NewSessionTicket with empty early_data extension in ssl

MSRC advisory NVD CVE.org

Assessment

Severity: Important
CVSS base score: Not published
Impact: Not stated
EPSS · 30-day forecast: No EPSS score collected
Public detection template: No Nuclei template is listed in the current collected catalog
Exploitation detected: Unknown: not stated by MSRC
Exploitability: Not assessed
Publicly disclosed: Unknown: not stated by MSRC
Customer action: Required: follow the MSRC remediation guidance
Component: Mariner
Weakness: CWE-1288: Improper Validation of Consistency within Input
Issued by: EEF
Published: 16 Oct 2026 · October 2026
Last revised: 30 Oct 2026Information published.

Updates that fix it

0 KBs

No KB listed

No KB update is listed in the collected MSRC record. Check the MSRC advisory for product releases and other remedies.

Affected products

Open Source Software

1 affected product

azl3 erlang 26.2.5.21-6 on Azure Linux 3.0

What changed

Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
6 Nov 2026 · 17:32:22 UTC
Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
6 Nov 2026 · 16:31:02 UTC
Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
2 Nov 2026 · 17:30:39 UTC
Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
2 Nov 2026 · 16:27:39 UTC
Detection template: No Nuclei template listed · Customer action: Required: apply the update → Required: follow the MSRC remediation guidance · Public disclosure: No → Unknown: not stated by MSRC · Exploitation detected: Not reported by MSRC → Unknown: not stated by MSRC
29 Oct 2026
Detection template: Unknown: exploit-code evidence is incomplete or retained → No Nuclei template listed · CISA KEV: Unknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
23 Oct 2026 · 09:33:49 UTC
Detection template: No Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained · CISA KEV: Not listed in the collected catalog → Unknown: catalog evidence is incomplete or retained
23 Oct 2026 · 08:31:50 UTC

Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version

Field-level log (36)

Up to 100 recent field edits are shown; older edits may be outside retention.

6 Nov 2026 · 17:32:22 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
6 Nov 2026 · 17:32:22 UTC Source coverage: public-exploit-codeIncomplete → Current
6 Nov 2026 · 17:32:22 UTC Source coverage: first-epssIncomplete → Current
6 Nov 2026 · 17:32:22 UTC Source coverage: msrc-cvrfIncomplete → Current
6 Nov 2026 · 16:31:02 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
6 Nov 2026 · 16:31:02 UTC Source coverage: public-exploit-codeCurrent → Incomplete
6 Nov 2026 · 16:31:02 UTC Source coverage: first-epssCurrent → Incomplete
6 Nov 2026 · 16:31:02 UTC Source coverage: msrc-cvrfCurrent → Incomplete
2 Nov 2026 · 17:30:39 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
2 Nov 2026 · 17:30:39 UTC Source coverage: public-exploit-codeIncomplete → Current
2 Nov 2026 · 17:30:39 UTC Source coverage: first-epssIncomplete → Current
2 Nov 2026 · 17:30:39 UTC Source coverage: msrc-cvrfIncomplete → Current
2 Nov 2026 · 16:27:39 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
2 Nov 2026 · 16:27:39 UTC Source coverage: public-exploit-codeCurrent → Incomplete
2 Nov 2026 · 16:27:39 UTC Source coverage: first-epssCurrent → Incomplete
2 Nov 2026 · 16:27:39 UTC Source coverage: msrc-cvrfCurrent → Incomplete
30 Oct 2026 · 07:19:14 UTC Last revised28 Oct 2026 14:43 UTC → 30 Oct 2026 01:44 UTC
29 Oct 2026 · 20:19:26 UTC Public detection templateNo Nuclei template listed
29 Oct 2026 · 20:19:26 UTC EPSSNot scored → No EPSS score collected
29 Oct 2026 · 20:19:26 UTC Customer actionRequired: apply the update → Required: follow the MSRC remediation guidance
29 Oct 2026 · 20:19:26 UTC Publicly disclosedNo → Unknown: not stated by MSRC
29 Oct 2026 · 20:19:26 UTC Exploitation detectedNot reported by MSRC → Unknown: not stated by MSRC
28 Oct 2026 · 19:05:35 UTC Last revised16 Oct 2026 01:06 UTC → 28 Oct 2026 14:43 UTC
23 Oct 2026 · 09:33:49 UTC Public exploit codeUnknown: exploit-code evidence is incomplete or retained → No Nuclei template listed
23 Oct 2026 · 09:33:49 UTC CISA KEVUnknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
23 Oct 2026 · 09:33:49 UTC Source coverage: public-exploit-codeIncomplete → Current
23 Oct 2026 · 09:33:49 UTC Source coverage: first-epssIncomplete → Current
23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
23 Oct 2026 · 08:31:50 UTC Public exploit codeNo Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained
23 Oct 2026 · 08:31:50 UTC CISA KEVNot listed in the collected catalog → Unknown: catalog evidence is incomplete or retained
23 Oct 2026 · 08:31:50 UTC Source coverage: public-exploit-codeCurrent → Incomplete
23 Oct 2026 · 08:31:50 UTC Source coverage: first-epssCurrent → Incomplete
23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete
23 Oct 2026 · 08:31:50 UTC Source coverage: msrc-cvrfCurrent → Incomplete
18 Oct 2026 · 14:54:30 UTC Link: October 2026/security?release=2026-Oct#cves

Explore global source statements, affected packages and advisory history for CVE-2026-94200. The catalog has a separate collection scope from Microsoft release records.

cve-program · CVE-2026-94200

Published

otp

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "cpes": [
                        "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "ssl_handshake",
                        "tls_handshake_1_3",
                        "tls_client_ticket_store"
                    ],
                    "packageName": "otp",
                    "packageURL": "pkg:software-id/erlang.org/otp",
                    "product": "OTP",
                    "programFiles": [
                        "lib/ssl/src/ssl_handshake.erl",
                        "lib/ssl/src/tls_handshake_1_3.erl",
                        "lib/ssl/src/tls_client_ticket_store.erl"
                    ],
                    "programRoutines": [
                        {
                            "name": "ssl_handshake:decode_extensions/4"
                        },
                        {
                            "name": "tls_handshake_1_3:decode_handshake/2"
                        },
                        {
                            "name": "tls_handshake_1_3:get_max_early_data/1"
                        },
                        {
                            "name": "tls_client_ticket_store:find_ticket/5"
                        },
                        {
                            "name": "tls_client_ticket_store:get_tickets/2"
                        }
                    ],
                    "vendor": "Erlang",
                    "versions": [
                        {
                            "changes": [
                                {
                                    "at": "27.3.4.19",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "28.5.0.8",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "29.1.2",
                                    "status": "unaffected"
                                }
                            ],
                            "lessThan": "*",
                            "status": "affected",
                            "version": "23.3",
                            "versionType": "otp"
                        }
                    ]
                }

ssl

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "cpes": [
                        "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "ssl_handshake",
                        "tls_handshake_1_3",
                        "tls_client_ticket_store"
                    ],
                    "packageName": "ssl",
                    "packageURL": "pkg:otp/ssl?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Ferlang%2Fotp.git",
                    "product": "OTP",
                    "programFiles": [
                        "src/ssl_handshake.erl",
                        "src/tls_handshake_1_3.erl",
                        "src/tls_client_ticket_store.erl"
                    ],
                    "programRoutines": [
                        {
                            "name": "ssl_handshake:decode_extensions/4"
                        },
                        {
                            "name": "tls_handshake_1_3:decode_handshake/2"
                        },
                        {
                            "name": "tls_handshake_1_3:get_max_early_data/1"
                        },
                        {
                            "name": "tls_client_ticket_store:find_ticket/5"
                        },
                        {
                            "name": "tls_client_ticket_store:get_tickets/2"
                        }
                    ],
                    "repo": "https://github.com/erlang/otp",
                    "vendor": "Erlang",
                    "versions": [
                        {
                            "changes": [
                                {
                                    "at": "11.2.12.14",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "11.6.0.7",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "11.7.8",
                                    "status": "unaffected"
                                }
                            ],
                            "lessThan": "*",
                            "status": "affected",
                            "version": "10.3",
                            "versionType": "otp"
                        }
                    ]
                }

erlang/otp

https://github.com

Original vendor version evidence · not evaluated as a NuGet range

{
                    "collectionURL": "https://github.com",
                    "cpes": [
                        "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "ssl_handshake",
                        "tls_handshake_1_3",
                        "tls_client_ticket_store"
                    ],
                    "packageName": "erlang/otp",
                    "packageURL": "pkg:github/erlang/otp",
                    "product": "OTP",
                    "programFiles": [
                        "lib/ssl/src/ssl_handshake.erl",
                        "lib/ssl/src/tls_handshake_1_3.erl",
                        "lib/ssl/src/tls_client_ticket_store.erl"
                    ],
                    "programRoutines": [
                        {
                            "name": "ssl_handshake:decode_extensions/4"
                        },
                        {
                            "name": "tls_handshake_1_3:decode_handshake/2"
                        },
                        {
                            "name": "tls_handshake_1_3:get_max_early_data/1"
                        },
                        {
                            "name": "tls_client_ticket_store:find_ticket/5"
                        },
                        {
                            "name": "tls_client_ticket_store:get_tickets/2"
                        }
                    ],
                    "repo": "https://github.com/erlang/otp",
                    "vendor": "Erlang",
                    "versions": [
                        {
                            "changes": [
                                {
                                    "at": "66febc190e6dc42a5c4aedbfe250bf9a2edc2d5e",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "00a333bcf2800b69f540369b54167e897dae7219",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "cd0334854bf3ef56dc16f9fb728efe88fb05c4ac",
                                    "status": "unaffected"
                                }
                            ],
                            "lessThan": "*",
                            "status": "affected",
                            "version": "0abe6f66db0d295cd06b0efab3bdb3caa2803930",
                            "versionType": "git"
                        }
                    ]
                }

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