logback — security advisory

{
  "id": "6fe082ab8d28140e454bda8b9af39dbebc15be88e21b775cefe56a393c62f181",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-10532",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-10532",
    "summary": "Deserialization of untrusted data vulnerability in QOS.CH Sarl logback logback-core (HardenedObjectInputStream (logback-core) modules) allows Object Injection, albeit heavily restricted. More precisely, an attacker able to influence serialized data sent to SimpleSocketServer or SimpleSSLSocketServer can instantiate Proxy objects. Although deserialization is heavily restricted by HardenedObjectInputStream and no practical way to achieve remote code execution or significant privilege escalation has been identified, this issue constitutes a bypass of the intended security restrictions. This issue affects logback: through 1.5.33 inclusive.",
    "evidence": "osv:DEBIAN-CVE-2026-10532",
    "products": [
      {
        "name": {
          "value": "logback",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:1.2.11-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:1.2.11-4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:1.2.11-5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:1.2.11-6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:1.6.3-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:1.6.3-2",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "logback",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:1.2.11-6",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:1.6.3-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:1.6.3-2",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "logback",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:1.6.3-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1:1.2.11-6",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "low",
    "structured": {
      "id": "DEBIAN-CVE-2026-10532",
      "aliases": [
        "DEBIAN-CVE-2026-10532"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:M/U:Green"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "logback",
            "purl": "pkg:deb/debian/logback?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "1:1.2.11-3",
            "1:1.2.11-4",
            "1:1.2.11-5",
            "1:1.2.11-6",
            "1:1.6.3-1",
            "1:1.6.3-2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10532.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "logback",
            "purl": "pkg:deb/debian/logback?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "1:1.2.11-6",
            "1:1.6.3-1",
            "1:1.6.3-2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10532.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:1.6.3-1"
                }
              ]
            }
          ],
          "package": {
            "name": "logback",
            "purl": "pkg:deb/debian/logback?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "1:1.2.11-6"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10532.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-15T18:00:07.867076902Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-10532"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-10532"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-10532",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 335521,
  "published_at": "2026-06-01T13:16:30.34+00:00"
}