Security advisory

{
  "id": "72f103448e856f2ad2513a15ad71304e43d72a2e7150a607339facd02131eb95",
  "url": "https://osv.dev/vulnerability/CVE-2017-18640",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-18640",
    "summary": "The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.",
    "evidence": "osv:CVE-2017-18640",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2017-18640",
      "aliases": [
        "CVE-2017-18640",
        "GHSA-rvwf-54qp-4r6v"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://bitbucket.org/snakeyaml/snakeyaml",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e91772b1bc0bc67e4fb60e4c19a1a7ba0a180896"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:snakeyaml_project:snakeyaml:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.26"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "snakeyaml-1.25",
            "snakeyaml-1.24",
            "snakeyaml-1.23",
            "snakeyaml-1.22",
            "snakeyaml-1.21",
            "snakeyaml-1.20",
            "snakeyaml-1.19",
            "v1.18",
            "v1.17",
            "v1.16",
            "v1.15",
            "v1.13",
            "v1.12",
            "v1.11",
            "v1.10",
            "v1.9",
            "v1.8",
            "v1.7",
            "v1.7rc1",
            "v1.6",
            "1.6rc2",
            "v1.6rc1",
            "v1.5",
            "v1.5rc1",
            "v1.4rc1",
            "v1.3",
            "v1.2",
            "v1.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-18640.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/quarkusio/quarkus",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "a58bf5b723a9a9389f6b12d020814242620dbcca"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.3.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.3.4.Final"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-18640.json"
          }
        }
      ],
      "modified": "2026-10-24T10:47:31.435837570Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread.html/r1058e7646988394de6a3fd0857ea9b1ee0de14d7bb28fee5ff782457%40%3Ccommits.atlas.apache.org%3E",
        "https://lists.apache.org/thread.html/r154090b871cf96d985b90864442d84eb027c72c94bc3f0a5727ba2d1%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r16ae4e529401b75a1f5aa462b272b31bf2a108236f882f06fddc14bc%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r1703a402f30c8a2ee409f8c6f393e95a63f8c952cc9ee5bf9dd586dc%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/r182e9cf6f3fb22b9be0cac4ff0685199741d2ab6e9a4e27a3693c224%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r191ceadb1b883357384981848dfa5235cb02a90070c553afbaf9b3d9%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/r1aab47b48a757c70e40fc0bcb1fcf1a3951afa6a17aee7cd66cf79f8%40%3Ccommon-commits.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r1dfac8b6a7097bcb4979402bbb6e2f8c36d0d9001e3018717eb22b7e%40%3Cdev.atlas.apache.org%3E",
        "https://lists.apache.org/thread.html/r1ffce2ed3017e9964f03ad2c539d69e49144fc8e9bf772d641612f98%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/r20350031c60a77b45e0eded33e9b3e9cb0cbfc5e24e1c63bf264df12%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/r22ac2aa053b7d9c6b75a49db78125c9316499668d0f4a044f3402e2f%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r2721aba31a8562639c4b937150897e24f78f747cdbda8641c0f659fe%40%3Cusers.kafka.apache.org%3E",
        "https://lists.apache.org/thread.html/r28c9009a48d52cf448f8b02cd823da0f8601d2dff4d66f387a35f1e0%40%3Cdev.atlas.apache.org%3E",
        "https://lists.apache.org/thread.html/r2a5b84fdf59042dc398497e914b5bb1aed77328320b1438144ae1953%40%3Cdev.atlas.apache.org%3E",
        "https://lists.apache.org/thread.html/r2b05744c0c2867daa5d1a96832965b7d6220328b0ead06c22a6e7854%40%3Ccommits.pulsar.apache.org%3E",
        "https://lists.apache.org/thread.html/r2db207a2431a5e9e95e899858ab1f5eabd9bcc790a6ca7193ae07e94%40%3Cdev.atlas.apache.org%3E",
        "https://lists.apache.org/thread.html/r436988d2cfe8a770ae361c82b181c5b2bf48a249bad84d8a55a3b46e%40%3Cdev.phoenix.apache.org%3E",
        "https://lists.apache.org/thread.html/r465d2553a31265b042cf5457ef649b71e0722ab89b6ea94a5d59529b%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r4c682fb8cf69dd14162439656a6ebdf42ea6ad0e4edba95907ea3f14%40%3Ccommits.servicecomb.apache.org%3E",
        "https://lists.apache.org/thread.html/r4d7f37da1bc2df90a5a0f56eb7629b5ea131bfe11eeeb4b4c193f64a%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r5510f0125ba409fc1cabd098ab8b457741e5fa314cbd0e61e4339422%40%3Cdev.atlas.apache.org%3E",
        "https://lists.apache.org/thread.html/r55d807f31e64a080c54455897c20b1667ec792e5915132c7b7750533%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/r56805265475919252ba7fc10123f15b91097f3009bae86476624ca25%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/r643ba53f002ae59068f9352fe1d82e1b6f375387ffb776f13efe8fda%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r666f29a7d0e1f98fa1425ca01efcfa86e6e3856e01d300828aa7c6ea%40%3Ccommits.pulsar.apache.org%3E",
        "https://lists.apache.org/thread.html/r6c91e52b3cc9f4e64afe0f34f20507143fd1f756d12681a56a9b38da%40%3Ccommits.pulsar.apache.org%3E",
        "https://lists.apache.org/thread.html/r6d54c2da792c74cc14b9b7665ea89e144c9e238ed478d37fd56292e6%40%3Cdev.atlas.apache.org%3E",
        "https://lists.apache.org/thread.html/r72a3588d62b2de1361dc9648f5d355385735e47f7ba49d089b0e680d%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r7ce3de03facf7e7f3e24fc25d26d555818519dafdb20f29398a3414b%40%3Cdev.phoenix.apache.org%3E",
        "https://lists.apache.org/thread.html/r8464b6ec951aace8c807bac9ea526d4f9e3116aa16d38be06f7c6524%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r8b57c57cffa01e418868a3c7535b987635ff1fb5ab534203bfa2d64a%40%3Ccommits.pulsar.apache.org%3E",
        "https://lists.apache.org/thread.html/r900e020760c89f082df1c6e0d46320eba721e4e47bb9eb521e68cd95%40%3Ccommits.servicecomb.apache.org%3E",
        "https://lists.apache.org/thread.html/raebd2019b3da8c2f90f31e8b203b45353f78770ca93bfe5376f5532e%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/rb0e033d5ec8233360203431ad96580cf2ec56f47d9a425d894e279c2%40%3Cpr.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/rb34d8d3269ad47a1400f5a1a2d8310e13a80b6576ebd7f512144198d%40%3Ccommon-dev.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/rb5c33d0069c927fae16084f0605895b98d231d7c48527bcb822ac48c%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/rb7b28ac741e32dd5edb2c22485d635275bead7290b056ee56baf8ce0%40%3Cdev.atlas.apache.org%3E",
        "https://lists.apache.org/thread.html/rbaa1f513d903c89a08267c91d86811fa5bcc82e0596b6142c5cea7ea%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/rc3211c71f7e0973a1825d1988a3921288c06cd9d793eae97ecd34948%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/rcb2a7037366c58bac6aec6ce3df843a11ef97ae4eb049f05f410eaa5%40%3Ccommon-commits.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/rcb4b61dbe2ed1c7a88781a9aff5a9e7342cc7ed026aec0418ee67596%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/rce5c93bba6e815fb62ad38e28ca1943b3019af1eddeb06507ad4e11a%40%3Ccommits.atlas.apache.org%3E",
        "https://lists.apache.org/thread.html/rd582c64f66c354240290072f340505f5d026ca944ec417226bb0272e%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/rdd34c0479587e32a656d976649409487d51ca0d296b3e26b6b89c3f5%40%3Ccommon-commits.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/re791a854001ec1f79cd4f47328b270e7a1d9d7056debb8f16d962722%40%3Cdev.atlas.apache.org%3E",
        "https://lists.apache.org/thread.html/re851bbfbedd47c690b6e01942acb98ee08bd00df1a94910b905bc8cd%40%3Cdev.atlas.apache.org%3E",
        "https://lists.apache.org/thread.html/reb1751562ee5146d3aca654a2df76a2c13d8036645ce69946f9c219e%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/recfe569f4f260328b0036f1c82b2956e864d519ab941a5e75d0d832d%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/rf95bebee6dfcc55067cebe8482bd31e6f481d9f74ba8e03f860c3ec7%40%3Ccommits.cassandra.apache.org%3E",
        "https://lists.apache.org/thread.html/rfe0aab6c3bebbd9cbfdedb65ff3fdf420714bcb8acdfd346077e1263%40%3Ccommon-commits.hadoop.apache.org%3E",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKN7VGIKTYBCAKYBRG55QHXAY5UDZ7HA/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PTVJC54XGX26UJVVYCXZ7D25X3R5T2G6/",
        "https://bitbucket.org/asomov/snakeyaml/wiki/Billion%20laughs%20attack",
        "https://bitbucket.org/snakeyaml/snakeyaml/wiki/Changes",
        "https://mvnrepository.com/artifact/org.yaml/snakeyaml/1.25/usages",
        "https://security.gentoo.org/glsa/202305-28",
        "https://bitbucket.org/snakeyaml/snakeyaml/issues/377",
        "https://bitbucket.org/asomov/snakeyaml/issues/377/allow-configuration-for-preventing-billion",
        "https://www.oracle.com/security-alerts/cpuApr2021.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "31"
                  },
                  {
                    "last_affected": "31"
                  },
                  {
                    "introduced": "32"
                  },
                  {
                    "last_affected": "32"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:oracle:peoplesoft_enterprise_pt_peopletools:8.56:*:*:*:*:*:*:*",
              "cpe:2.3:a:oracle:peoplesoft_enterprise_pt_peopletools:8.57:*:*:*:*:*:*:*",
              "cpe:2.3:a:oracle:peoplesoft_enterprise_pt_peopletools:8.58:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:peoplesoft_enterprise_pt_peopletools",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.56"
                  },
                  {
                    "last_affected": "8.56"
                  },
                  {
                    "introduced": "8.57"
                  },
                  {
                    "last_affected": "8.57"
                  },
                  {
                    "introduced": "8.58"
                  },
                  {
                    "last_affected": "8.58"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2017-18640",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441301,
  "published_at": "2019-12-12T03:15:10.85+00:00"
}