CVE-2020-8441
Deserialization of Untrusted Data in JYaml
JYaml through 1.3 allows remote code execution during deserialization of a malicious payload through the load() function. NOTE: this is a discontinued product.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
JYaml through 1.3 allows remote code execution during deserialization of a malicious payload through the load() function. NOTE: this is a discontinued product.
- Record
CVE-2020-8441- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-502
- Updated
- 2026-11-02
CVE ListNo score
JYaml through 1.3 allows remote code execution during deserialization of a malicious payload through the load() function. NOTE: this is a discontinued product.
- Record
CVE-2020-8441- Updated
- 2026-11-02
EUVDEUVD-2022-2430No score
JYaml through 1.3 allows remote code execution during deserialization of a malicious payload through the load() function. NOTE: this is a discontinued product.
- Record
EUVD-2022-2430- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4qhr-q7wf-94xp
Deserialization of Untrusted Data in JYaml
JYaml through 1.3 allows remote code execution during deserialization of a malicious payload through the load() function. NOTE: this is a discontinued product.
- Record
GHSA-4qhr-q7wf-94xp- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
OSVGHSA-4qhr-q7wf-94xp
Deserialization of Untrusted Data in JYaml
JYaml through 1.3 allows remote code execution during deserialization of a malicious payload through the load() function. NOTE: this is a discontinued product.
- Record
GHSA-4qhr-q7wf-94xp- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.jyaml:jyamlMaven | through 1.3 | None known |
org.jyaml:jyamlMaven | through 1.3, plus listed versions 1.2 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-8441 is a critical vulnerability (CVSS 9.8) in Jyaml Project Jyaml, published February 19, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.96%, the 92nd percentile. No source names a fixed version.
References
github.com/mbechler/marshalsec
sourceforge.net/p/jyaml/bugs
gist.github.com/j0lt-github/f5141abcacae63d434ecae211422153a
security.netapp.com/advisory/ntap-20200313-0001
nvd.nist.gov/vuln/detail/CVE-2020-8441