Deserialization in Apache Tapestry
CVE-2020-17531
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…
Vulnerability class: Insecure Deserialization
EPSS: 0.097 (95.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apache Tapestry
- Apache Software Foundation Tapestry — versions Apache Tapestry 4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (Mailing List, Vendor Advisory)
- security@apache.org (Third Party Advisory)
- security@apache.org (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-17531?
- CVE-2020-17531 is a critical-severity vulnerability in Apache Tapestry, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2020-12-08.
- How severe is CVE-2020-17531?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-17531 known to be exploited?
- 14 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.