GHSA-6mwh-fw4p-75fj · Severity: critical · Ecosystem: maven — Deserialization of Untrusted Data in Apache Tapestry
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.
Conclusion & alert: CVE-2019-0195 is rated High Risk (72.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 14.87%, 96th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 15.52% | 14.87% | -0.65% |
| 2 | 2026-06-08 | 14.23% | 15.52% | +1.29% |
| 3 | 2026-05-31 | — | 14.23% | — |
Full EPSS history (22 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
GHSA-6mwh-fw4p-75fj · Severity: critical · Ecosystem: maven — Deserialization of Untrusted Data in Apache Tapestry