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Critical

Security advisory

Type: advisorySources: OSVCVE: CVE-2019-0195

Manipulating classpath asset file URLs, an attacker could guess the path to a known file in the classpath and have it downloaded. If the attacker found the file with the value of the tapestry.hmac-passphrase configuration symbol, most probably the webapp's AppModule class, the value of this symbol could be used to craft a Java deserialization attack, thus running malicious injected Java code. The vector would be the t:formdata parameter from the Form component.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2019-0195
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 06:00 UTC · Revision 1

Source evidence

CVE-2019-0195

core-osv · Original source

Published 16 Sept 2019, 16:15 UTC

Manipulating classpath asset file URLs, an attacker could guess the path to a known file in the classpath and have it downloaded. If the attacker found the file with the value of the tapestry.hmac-passphrase configuration symbol, most probably the webapp's AppModule class, the value of this symbol could be used to craft a Java deserialization attack, thus running malicious injected Java code. The vector would be the t:formdata parameter from the Form component.

osv:CVE-2019-0195
Complete source record
{
  "id": "96f3cc25a9fc03c31db306ae5a9902c6da79c62b16a3a68556a4c3a82add0c03",
  "url": "https://osv.dev/vulnerability/CVE-2019-0195",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-0195",
    "summary": "Manipulating classpath asset file URLs, an attacker could guess the path to a known file in the classpath and have it downloaded. If the attacker found the file with the value of the tapestry.hmac-passphrase configuration symbol, most probably the webapp's AppModule class, the value of this symbol could be used to craft a Java deserialization attack, thus running malicious injected Java code. The vector would be the t:formdata parameter from the Form component.",
    "evidence": "osv:CVE-2019-0195",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2019-0195",
      "aliases": [
        "CVE-2019-0195",
        "GHSA-6mwh-fw4p-75fj"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/tapestry-5",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2672e9847ad56d2b3f83c28319b532b92d6af5c9"
                },
                {
                  "last_affected": "85cc611fbad4a3574664b33ce9adf614b4f0fe07"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:tapestry:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.4.0"
                      },
                      {
                        "last_affected": "5.4.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.4.3",
            "5.4.2",
            "5.4.1",
            "5.4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-0195.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:34.290395692Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread.html/5173c4eed06e2fca6fd5576ed723ff6bb1711738ec515cb51a04ab24%40%3Cusers.tapestry.apache.org%3E",
        "https://lists.apache.org/thread.html/6c40c1e03d2131119f9b77882431a0050f02bf9cae9ee48b84d012df%40%3Cusers.tapestry.apache.org%3E",
        "https://lists.apache.org/thread.html/a4092cb3bacb143571024e79c0016c039b6c982423daa33a7a5c794a%40%3Cusers.tapestry.apache.org%3E",
        "https://lists.apache.org/thread.html/r237ff7f286bda31682c254550c1ebf92b0ec61329b32fbeb2d1c8751%40%3Cusers.tapestry.apache.org%3E",
        "https://lists.apache.org/thread.html/r7d9c54beb1dc97dcccc58d9b5d31f0f7166f9a25ad1beba5f8091e0c%40%3Ccommits.tapestry.apache.org%3E",
        "https://lists.apache.org/thread.html/r87523dd07886223aa086edc25fe9b8ddb9c1090f7db25b068dc30843%40%3Ccommits.tapestry.apache.org%3E"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:apache:tapestry:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "apache:tapestry",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "5.4.0"
                  },
                  {
                    "last_affected": "5.4.3"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-0195",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 433486,
  "published_at": "2019-09-16T16:15:10.007+00:00"
}