Description
libsodium before ad3004e, in atypical use cases involving certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point, mishandles checks for whether an elliptic curve point is valid because it sometimes allows points that aren't in the main cryptographic group.
References (8)
Core 8
Core References
Various Sources
https://00f.net/2025/12/30/libsodium-vulnerability/
Various Sources
https://ianix.com/pub/ed25519-deployment.html
Various Sources
https://news.ycombinator.com/item?id=46435614
Issue Tracking
https://github.com/pyca/pynacl/issues/920
Scores
CVSS v3
4.5
EPSS
0.0017
EPSS Percentile
6.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-184
Status
published
Products (4)
libsodium/libsodium
< ad3004ec8731730e93fcfbbc824e67eadc1c1bae
paragonie/sodium_compat
2 - 2.5.0Packagist
pypi/hdwallet
0 - 3.6.1PyPI
pypi/PyNaCl
0 - 1.6.2PyPI
Published
Dec 31, 2025
Tracked Since
Feb 18, 2026