CVE-2021-24040
CRITICAL
9.8
CVSS Score
Published: September 10, 2021 at 10:10 PM UTC
Updated: June 17, 2026 at 03:39 AM UTC
1 product affected across 1 vendorParlai
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Severity
CRITICAL9.8
Exploit prediction
EPSS 17%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_MISCExploitThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/164136/Facebook-ParlAI-1.0.0-Code-Execution-Deserialization.htmlx_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/facebookresearch/ParlAI/releases/tag/v1.1.0x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/facebookresearch/ParlAI/security/advisories/GHSA-m87f-9fvv-2mggCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-502
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