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DEBIAN-CVE-2026-101003

Type: advisorySource: OSV1 source record

A weakness has been identified in Cesanta Mongoose up to 7.21. Affected by this vulnerability is the function fn of the file tutorials/mqtt/mqtt-server/main.c of the component MQTT Broker. Executing a manipulation can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 7.22 addresses this issue. This patch is called a9df523f76f43a38bd53b4232b9cfd4c16869e71. Upgrading the affected component is advised.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-101003

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-101003

mongoose

Source reference: /affected/0/package/name

Affected versions
7.21+ds-1

Source reference: /affected/0/versions

7.21+ds-1~bpo13+1

Source reference: /affected/0/versions

7.21+ds-2

Source reference: /affected/0/versions

7.22+ds-1~bpo13+1

Source reference: /affected/0/versions

Fixed versions
7.22+ds-1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7.22+ds-1"
          }
        ]
      }
    ],
    "package": {
      "name": "mongoose",
      "purl": "pkg:deb/debian/mongoose?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "7.21+ds-1",
      "7.21+ds-1~bpo13+1",
      "7.21+ds-2",
      "7.22+ds-1~bpo13+1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-101003.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]
Related CVEs
CVE-2026-101003

Source reference: /upstream

Publisher severity

medium

Source reference: /severity/0/score

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

Event
#67707 · Revision 1
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Publisher date
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