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Case File

CVE-2020-17531

CRITICAL · CVSS 9.8 EPSS 9.73%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-12-08 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2020-17531
Severity
CRITICAL
CVSS
9.8
EPSS
9.73%
Apache Java

Original NVD Description

A Java Serialization vulnerability was found in Apache Tapestry 4. Apache Tapestry 4 will attempt to deserialize the "sp" parameter even before invoking the page's validate method, leading to deserialization without authentication. Apache Tapestry 4 reached end of life in 2008 and no update to address this issue will be released. Apache Tapestry 5 versions are not vulnerable to this issue. Users of Apache Tapestry 4 should upgrade to the latest Apache Tapestry 5 version.