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SnakeYAML Entity Expansion during load operation

High severity GitHub Reviewed Published Jun 4, 2021 to the GitHub Advisory Database • Updated May 22, 2023

Package

maven org.yaml:snakeyaml (Maven)

Affected versions

< 1.26

Patched versions

1.26

Description

The Alias feature in SnakeYAML 1.18 allows entity expansion during a load operation, a related issue to CVE-2003-1564.

References

Published by the National Vulnerability Database Dec 12, 2019
Reviewed Jun 4, 2021
Published to the GitHub Advisory Database Jun 4, 2021
Last updated May 22, 2023

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

CVE-2017-18640

GHSA ID

GHSA-rvwf-54qp-4r6v

Source code

Credits

Checking history
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