Description
Remarshal prior to v0.17.1 expands YAML alias nodes unlimitedly, hence Remarshal is vulnerable to Billion Laughs Attack. Processing untrusted YAML files may cause a denial-of-service (DoS) condition.
Scores
CVSS v3
7.5
EPSS
0.0008
EPSS Percentile
22.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-674
Status
published
Products (2)
pypi/remarshal
0 - 0.17.1PyPI
remarshal_project/remarshal
< 0.17.1
Published
Nov 13, 2023
Tracked Since
Feb 18, 2026