CVE-2020-8441

CRITICALNVD 9.89.8—

9.8

JYaml through 1.3 allows remote code execution during deserialization of a malicious payload through the load() function. NOTE: this is a discontinued product.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 91.9%
KEV: Not listed

Published

February 19, 2020

Last Modified

November 21, 2024

Advisory Details (5)

Auto-updated May 27, 2026

No patch confirmed yet.

generic

JYaml / Bugs

https://sourceforge.net/p/jyaml/bugs/

generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20200313-0001/

generic

marshalsec/marshalsec.pdf at master · mbechler/marshalsec · GitHub

https://github.com/mbechler/marshalsec/blob/master/marshalsec.pdf

generic

GitHub - mbechler/marshalsec · GitHub

https://github.com/mbechler/marshalsec

generic

jyaml Java library - 1.3 Deserialization attack · GitHub

https://gist.github.com/j0lt-github/f5141abcacae63d434ecae211422153a

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
maven	org.jyaml:jyaml	—	ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

Maven(1)

Package	Vulnerable range	Fixed in	Dependents
org.jyaml:jyaml	1.2, 1.3	—	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-502Deserialization of Untrusted Data

Frequently asked(5)

What is CVE-2020-8441?

CVE-2020-8441 is a critical vulnerability published on February 19, 2020. JYaml through 1.3 allows remote code execution during deserialization of a malicious payload through the load() function. NOTE: this is a discontinued product.

When was CVE-2020-8441 disclosed?

CVE-2020-8441 was first published in the National Vulnerability Database on February 19, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-8441 actively exploited?

CVE-2020-8441 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-8441?

CVE-2020-8441 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2020-8441?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-8441, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-8441

Explore →

Is Your Infrastructure Affected by CVE-2020-8441?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2020-8441

📅 Published

🔄 Last Modified

📋 Advisory Details (5)

JYaml / Bugs

NetApp Product Security

marshalsec/marshalsec.pdf at master · mbechler/marshalsec · GitHub

GitHub - mbechler/marshalsec · GitHub

jyaml Java library - 1.3 Deserialization attack · GitHub

Patch Availability(1)

Affected Packages

Weakness Classification(1)

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-8441?

Published

Last Modified

Advisory Details (5)

Frequently asked(5)