UnratedFix available

DEBIAN-CVE-2026-5124

Type: advisorySource: OSV1 source record

A security vulnerability has been detected in osrg GoBGP up to 4.3.0. Affected is the function BGPHeader.DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP Header Handler. The manipulation leads to improper access controls. Remote exploitation of the attack is possible. The attack is considered to have high complexity. The exploitability is told to be difficult. The identifier of the patch is f0f24a2a901cbf159260698211ab15c583ced131. To fix this issue, it is recommended to deploy a patch.

Announced 30 Mar 2026Source revision 1

Original source ↗

DEBIAN-CVE-2026-5124

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-2026-5124

gobgp

Source reference: /affected/0/package/name

Affected versions: 3.10.0-1
Source reference: /affected/0/versions
3.16.0-1
Source reference: /affected/0/versions
3.19.0-1
Source reference: /affected/0/versions
3.21.0-1
Source reference: /affected/0/versions
3.23.0-1
Source reference: /affected/0/versions
3.25.0-1
Source reference: /affected/0/versions
3.27.0-1
Source reference: /affected/0/versions
3.28.0-1
Source reference: /affected/0/versions
3.29.0-1
Source reference: /affected/0/versions
3.30.0-1
Source reference: /affected/0/versions
3.31.0-1
Source reference: /affected/0/versions
3.32.0-1
Source reference: /affected/0/versions
3.33.0-1
Source reference: /affected/0/versions
3.35.0-1
Source reference: /affected/0/versions
3.36.0-1
Source reference: /affected/0/versions
3.36.0-2
Source reference: /affected/0/versions
4.3.0-1
Source reference: /affected/0/versions
4.4.0-1
Source reference: /affected/0/versions
4.5.0-1
Source reference: /affected/0/versions
4.5.0-1~bpo13+1
Source reference: /affected/0/versions
4.6.0-1
Source reference: /affected/0/versions
4.6.0-2
Source reference: /affected/0/versions
4.6.0-2~bpo13+1
Source reference: /affected/0/versions
4.7.0-1
Source reference: /affected/0/versions
4.7.0-1~bpo13+1
Source reference: /affected/0/versions
4.8.0-1
Source reference: /affected/0/versions
4.8.0-2~exp1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

gobgp

Source reference: /affected/1/package/name

Affected versions: 3.36.0-2
Source reference: /affected/1/versions
4.3.0-1
Source reference: /affected/1/versions
4.4.0-1
Source reference: /affected/1/versions
4.5.0-1
Source reference: /affected/1/versions
4.5.0-1~bpo13+1
Source reference: /affected/1/versions
4.6.0-1
Source reference: /affected/1/versions
4.6.0-2
Source reference: /affected/1/versions
4.6.0-2~bpo13+1
Source reference: /affected/1/versions
4.7.0-1
Source reference: /affected/1/versions
4.7.0-1~bpo13+1
Source reference: /affected/1/versions
4.8.0-1
Source reference: /affected/1/versions
4.8.0-2~exp1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

gobgp

Source reference: /affected/2/package/name

Affected versions: 3.36.0-2
Source reference: /affected/2/versions
4.3.0-1
Source reference: /affected/2/versions
Fixed versions: 4.4.0-1
Source reference: /affected/2/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"
          }
        ]
      }
    ],
    "package": {
      "name": "gobgp",
      "purl": "pkg:deb/debian/gobgp?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "3.10.0-1",
      "3.16.0-1",
      "3.19.0-1",
      "3.21.0-1",
      "3.23.0-1",
      "3.25.0-1",
      "3.27.0-1",
      "3.28.0-1",
      "3.29.0-1",
      "3.30.0-1",
      "3.31.0-1",
      "3.32.0-1",
      "3.33.0-1",
      "3.35.0-1",
      "3.36.0-1",
      "3.36.0-2",
      "4.3.0-1",
      "4.4.0-1",
      "4.5.0-1",
      "4.5.0-1~bpo13+1",
      "4.6.0-1",
      "4.6.0-2",
      "4.6.0-2~bpo13+1",
      "4.7.0-1",
      "4.7.0-1~bpo13+1",
      "4.8.0-1",
      "4.8.0-2~exp1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5124.json"
    },
    "ecosystem_specific": {
      "urgency": "unimportant"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "gobgp",
      "purl": "pkg:deb/debian/gobgp?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "3.36.0-2",
      "4.3.0-1",
      "4.4.0-1",
      "4.5.0-1",
      "4.5.0-1~bpo13+1",
      "4.6.0-1",
      "4.6.0-2",
      "4.6.0-2~bpo13+1",
      "4.7.0-1",
      "4.7.0-1~bpo13+1",
      "4.8.0-1",
      "4.8.0-2~exp1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5124.json"
    },
    "ecosystem_specific": {
      "urgency": "unimportant"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "4.4.0-1"
          }
        ]
      }
    ],
    "package": {
      "name": "gobgp",
      "purl": "pkg:deb/debian/gobgp?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "3.36.0-2",
      "4.3.0-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5124.json"
    },
    "ecosystem_specific": {
      "urgency": "unimportant"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #57768 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 17:27:00 GMT
Publisher date: Mon, 30 Mar 2026 17:16:16 GMT

Read the original announcement