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DEBIAN-CVE-2026-58302

Type: advisorySource: OSV1 source record

rtapi_app in linuxcnc-uspace in LinuxCNC before 2.9.9 allows privilege escalation. It is installed SUID root and loads shared library modules via dlopen() by using a user-supplied module name. Insufficient validation of the module name allows path traversal, enabling an unprivileged local user to load an arbitrary shared library. Because the process retains elevated privileges during module loading, this results in local privilege escalation to root.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-58302

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-2026-58302

linuxcnc

Source reference: /affected/0/package/name

Affected versions
2.9.0~pre1+git20230208.f1270d6ed7-1

Source reference: /affected/0/versions

2.9.0~pre1+git20230208.f1270d6ed7-1+deb12u1

Source reference: /affected/0/versions

Fixed versions
2.9.0~pre1+git20230208.f1270d6ed7-1+deb12u2

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

linuxcnc

Source reference: /affected/1/package/name

Affected versions
1:2.9.4-2

Source reference: /affected/1/versions

Fixed versions
1:2.9.4-2+deb13u1

Source reference: /affected/1/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": "2.9.0~pre1+git20230208.f1270d6ed7-1+deb12u2"
          }
        ]
      }
    ],
    "package": {
      "name": "linuxcnc",
      "purl": "pkg:deb/debian/linuxcnc?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "2.9.0~pre1+git20230208.f1270d6ed7-1",
      "2.9.0~pre1+git20230208.f1270d6ed7-1+deb12u1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58302.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1:2.9.4-2+deb13u1"
          }
        ]
      }
    ],
    "package": {
      "name": "linuxcnc",
      "purl": "pkg:deb/debian/linuxcnc?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "1:2.9.4-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58302.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#58030 · Revision 1
Added to Heist Feed
Publisher date
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