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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2019-1000021

slixmpp version before commit 7cd73b594e8122dddf847953fcfc85ab4d316416 contains an incorrect Access Control vulnerability in XEP-0223 plugin (Persistent Storage of Private Data via PubSub) options profile, used for the configuration of default access model that can result in all of the contacts of the victim can see private data having been published to a PEP node. This attack appears to be exploitable if the user of this library publishes any private data on PEP, the node isn't configured to be private. This vulnerability appears to have been fixed in commit 7cd73b594e8122dddf847953fcfc85ab4d316416 which is included in slixmpp 1.4.2.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2019-1000021
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 06:24 UTC · Revision 1

Source evidence

CVE-2019-1000021

core-osv · Original source

Published 4 Feb 2019, 21:29 UTC

slixmpp version before commit 7cd73b594e8122dddf847953fcfc85ab4d316416 contains an incorrect Access Control vulnerability in XEP-0223 plugin (Persistent Storage of Private Data via PubSub) options profile, used for the configuration of default access model that can result in all of the contacts of the victim can see private data having been published to a PEP node. This attack appears to be exploitable if the user of this library publishes any private data on PEP, the node isn't configured to be private. This vulnerability appears to have been fixed in commit 7cd73b594e8122dddf847953fcfc85ab4d316416 which is included in slixmpp 1.4.2.

osv:CVE-2019-1000021
Complete source record
{
  "id": "9e8b75bb9dbc182e1325e57e793c4a6a0dbffaa278f48a940f82376d5a529ce3",
  "url": "https://osv.dev/vulnerability/CVE-2019-1000021",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-1000021",
    "summary": "slixmpp version before commit 7cd73b594e8122dddf847953fcfc85ab4d316416 contains an incorrect Access Control vulnerability in XEP-0223 plugin (Persistent Storage of Private Data via PubSub) options profile, used for the configuration of default access model that can result in all of the contacts of the victim can see private data having been published to a PEP node. This attack appears to be exploitable if the user of this library publishes any private data on PEP, the node isn't configured to be private. This vulnerability appears to have been fixed in commit 7cd73b594e8122dddf847953fcfc85ab4d316416 which is included in slixmpp 1.4.2.",
    "evidence": "osv:CVE-2019-1000021",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-1000021",
      "aliases": [
        "CVE-2019-1000021",
        "GHSA-4g62-mfwx-4q48",
        "PYSEC-2019-121"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/poezio/slixmpp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9d378c611cacf2c5e425cdebc00a7a20a530d67c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:slixmpp_project:slixmpp:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.4.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "slix-1.4.1",
            "slix-1.4.0",
            "slix-1.3.0",
            "slix-1.2.4",
            "slix-1.2.3",
            "slix-1.2.2",
            "slix-1.2.1",
            "slix-1.2",
            "slix-1.1",
            "slix-1.0",
            "sleek-1.3.0",
            "1.3.0",
            "sleek-1.2.5",
            "1.2.5",
            "sleek-1.2.0",
            "1.2.0",
            "sleek-1.1.10",
            "1.1.10",
            "sleek-1.1.9",
            "1.1.9",
            "sleek-1.1.8",
            "1.1.8",
            "sleek-1.1.7",
            "1.1.7",
            "sleek-1.1.6",
            "1.1.6",
            "sleek-1.1.5",
            "1.1.5",
            "sleek-1.1.4",
            "1.1.4",
            "sleek-1.1.3",
            "1.1.3",
            "sleek-1.1.2",
            "1.1.2",
            "sleek-1.1.1",
            "1.1.1",
            "sleek-1.1",
            "1.1",
            "sleek-1.0",
            "1.0",
            "sleek-1.0-RC3",
            "1.0-RC3",
            "sleek-1.0-RC2",
            "1.0-RC2",
            "sleek-1.0-RC1",
            "1.0-RC1",
            "sleek-1.0-Beta2",
            "1.0-Beta2",
            "sleek-1.0-Beta1",
            "1.0-Beta1",
            "sleek-0.9RC1",
            "0.9RC1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-1000021.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:39.121309466Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GKBXN7EAAR7ENEZUBKV6C6MP6QBXYTWT/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WIBP4LD2V4TBJSLZXDUAGQMD6CUI2TZR/",
        "https://lab.louiz.org/poezio/slixmpp/commit/7cd73b594e8122dddf847953fcfc85ab4d316416",
        "https://xmpp.org/extensions/xep-0223.html#howitworks"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-1000021",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434598,
  "published_at": "2019-02-04T21:29:01.517+00:00"
}