CVE-2020-9493
criticalA deserialization flaw was found in Apache Chainsaw versions prior to 2.1.0 which could lead to malicious code execution.
Vendor / product: Apache — chainsaw
A deserialization flaw was found in Apache Chainsaw versions prior to 2.1.0 which could lead to malicious code execution.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2021-06-16 08:15
Modified: 2026-10-07 16:17
NVD status: Modified
Last synced 3 days ago
Verified against the source API 2026-10-27 07:06 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
apache / chainsaw <2.1.0
apache / log4j ≥1.2 <2.0
qos / reload4j <1.2.18.1
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- http://www.openwall.com/lists/oss-security/2021/06/16/1 security@apache.org
- http://www.openwall.com/lists/oss-security/2022/01/18/5 security@apache.org
- https://lists.apache.org/thread.html/r50d389c613ba6062a26aa57e163c09bfee4ff2d95d67331d7526... security@apache.org
- https://www.openwall.com/lists/oss-security/2021/06/16/1 security@apache.org
- http://www.openwall.com/lists/oss-security/2021/06/16/1 af854a3a-2127-422b-91ae-364da2661108
- http://www.openwall.com/lists/oss-security/2022/01/18/5 af854a3a-2127-422b-91ae-364da2661108
- https://lists.apache.org/thread.html/r50d389c613ba6062a26aa57e163c09bfee4ff2d95d67331d7526... af854a3a-2127-422b-91ae-364da2661108
- https://www.openwall.com/lists/oss-security/2021/06/16/1 af854a3a-2127-422b-91ae-364da2661108
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗