cve.bz

CVE-2021-24040

9.8 criticalEPSS 17%

Critical (9.8) in facebook parlai. EPSS 17% chance of exploitation in the next 30 days. Fixed in parlai 1.1.0.

Due to use of unsafe YAML deserialization logic, an attacker with the ability to modify local YAML configuration files could provide malicious input, resulting in remote code execution or similar risks. This issue affects ParlAI prior to v1.1.0.

Severity

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
EPSS
17% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)
CWE
CWE-502
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-m87f-9fvv-2mggPyPIparlai<1.1.01.1.0
GHSA-mwgj-7x7j-6966PyPIparlai<1.1.01.1.0
PYSEC-2021-330PyPIparlai<1.1.01.1.0
PYSEC-2021-334PyPIparlai<1.1.01.1.0

References

Check your stackJSON