Security advisory
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
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"
}