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CVE-2026-88350

📛 CVE Title

CVE-2026-88350

⬇ Download JSON

Description

An integer overflow vulnerability exists in MPack 1.1.1 in mpack_node_cstr_alloc() and mpack_node_utf8_cstr_alloc().

Overview

State
PUBLISHED
Assigner (CNA)
mitre
CVSS severity
—
CVSS score
—
CVSS vector
—
Effective score
no score available from CNA, NVD, or AI yet
CWE(s)
—
Reserved
2026-09-10
Published
2026-09-22 00:00 UTC
Last updated
2026-09-22 19:49 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/88xxx/CVE-2026-88350.json

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published
2026-09-22 20:17:10 UTC
NVD last modified
2026-09-22 20:17:10 UTC

NVD / KEV / EPSS data refreshed 2026-09-23 02:35 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

AI-forensic CVSS estimate

Used only when a CVE has no official CVSS from its CNA or NVD. An LLM estimates the v3.1 base score from the description; a HIGH/CRITICAL estimate promotes the CVE to a Threat.

No AI estimate yet — it runs automatically once NVD has been checked, or click the button above.

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID
EUVD-2026-84848
Assigner
mitre
Published
Sep 22, 2026, 12:00:00 AM
Updated
Sep 22, 2026, 7:49:51 PM
EUVD base score
0.0 / 10
EUVD-reported EPSS
0.0000
Vendors
n/a
Products
n/a (n/a)
Aliases
GHSA-c2wm-8rj3-h9cx

ENISA description: An integer overflow vulnerability exists in MPack 1.1.1 in mpack_node_cstr_alloc() and mpack_node_utf8_cstr_alloc().

EUVD references (2)

Affected products (1)
VendorProductVersionsPlatforms
n/a n/a n/a (affected) —

Vendor references (2)

References embedded in the original CVE record by the assigning CNA.

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (2)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

Remediations (10)

  • Oracle Security Critical Patch Update (CSPU) August 2026 for Oracle Java SE
    web:docs.oracle.com

    Oracle Security Critical Patch Update (CSPU) August 2026 for Oracle Java SE Services: Java Management Release Date: August 18, 2026 Java Management supports the following releases that are part of the Oracle Security Critical Patch Update (CSPU) August 2026 for Oracle Java SE:

    2026-09-23 15:42 UTC
  • Pennsylvania Access To Criminal History - Home - pa
    web:epatch.pa.gov

    Why does PATCH exist? Its purpose is to better enable the public to obtain criminal history record checks. The repository was created and is maintained in accordance with Pennsylvania's Criminal History Information Act contained in Chapter 91 of Title 18, Crimes Code. This Act also directs the Pennsylvania State Police (PSP) to disseminate criminal history data to criminal justice agencies ...

    2026-09-23 15:42 UTC
  • Security Update Guide - Microsoft Security Response Center
    web:msrc.microsoft.com

    Security Update Guide - Microsoft Security Response Center

    2026-09-23 15:42 UTC
  • Patch - Everything Local: Breaking News, Events, Discussions
    web:patch.com

    The best breaking news, stories, and events from the Patch network of local news sites

    2026-09-23 15:42 UTC
  • VALORANT Patch Notes 13.06
    web:playvalorant.com

    GENERAL UPDATES With Patch 13.06, VALORANT Console is now available in Australia and New Zealand! G'day and kia ora, gamers! KNOWN ISSUES Competitive Console issue for mode selection when in Range in Queue Modes When exiting the queue, you may be unable to enter the Range for a moment even while not in any queue. This will be fixed in a ...

    2026-09-23 15:42 UTC
  • August 11, 2026—Hotpatch KB5120994 (OS Builds 26200.9106 and 26100.9106 ...
    web:support.microsoft.com

    This Hotpatch update for Windows 11, version 25H2 and 24H2 (KB5120994) includes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates. To ...

    2026-09-23 15:42 UTC
  • Changelog / Patch Notes - ARK - Official Community Forums
    web:survivetheark.com

    Changelog / Patch Notes The latest changes that have been made and are upcoming to ARK.

    2026-09-23 15:42 UTC
  • Home - The Patch Augusta Municipal Golf Course
    web:www.golfthepatch.com

    Now open, The Patch features a redesigned 18-hole course, led by golf course architects Tom Fazio and Beau Welling, and a new 9-hole short course, The Loop at The Patch , designed by Tiger Woods and TGR Design. Welcome to Augusta's best-in-class public golf experience.

    2026-09-23 15:42 UTC
  • Oracle
    web:www.oracle.com

    Oracle Critical Security Patch Update Advisory - August 2026 Description. A Critical Security Patch Update (CSPU) provides targeted, high-priority security fixes in a smaller, mor

    2026-09-23 15:42 UTC
  • Patch Notes — full list of updates｜S.T.A.L.K.E.R. 2: Heart of Chornobyl ...
    web:www.stalker2.com

    Patch notes A comprehensive archive of changes, tweaks, and fixes introduced with every patch and major update of S.T.A.L.K.E.R. 2: Heart of Chornobyl. Your feedback helps us refine the Zone — if you encounter an anomaly that doesn't belong there, report it via the Technical Support Hub.

    2026-09-23 15:42 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-88350.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An integer overflow vulnerability exists in MPack 1.1.1 in mpack_node_cstr_alloc() and mpack_node_utf8_cstr_alloc()."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-22T19:49:51.265Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/ludocode/mpack/issues/124"
        },
        {
          "url": "https://github.com/ludocode/mpack/commit/3d54d1215bdb5478d3ddecaf85884c58b382cd9b"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-88350",
    "datePublished": "2026-09-22T00:00:00.000Z",
    "dateReserved": "2026-09-10T00:00:00.000Z",
    "dateUpdated": "2026-09-22T19:49:51.265Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}