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CVE-2025-69277

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Date: December 31, 2025

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.

Severity Score

Related Resources (16)

https://github.com/hdwallet-io/python-hdwallet/pull/124
https://github.com/FriendsOfPHP/security-advisories/blob/master/paragonie/sodium_compat/2025-12-30.yaml
https://github.com/paragonie/sodium_compat/commit/4714da6efdc782c06690bc72ce34fae7941c2d9f
https://github.com/pyca/pynacl/commit/ecf41f55a3d8f1e10ce89c61c4b4d67f3f4467cf
https://ianix.com/pub/ed25519-deployment.html
https://github.com/pyca/pynacl/issues/920
https://github.com/jedisct1/libsodium/commit/ad3004ec8731730e93fcfbbc824e67eadc1c1bae
https://00f.net/2025/12/30/libsodium-vulnerability
https://lists.debian.org/debian-lts-announce/2026/01/msg00004.html
https://00f.net/2025/12/30/libsodium-vulnerability/
https://github.com/pyca/pynacl/commit/96314884d88d1089ff5f336dba61d7abbcddbbf7
https://github.com/paragonie/sodium_compat/commit/2cb48f26130919f92f30650bdcc30e6f4ebe45ac
https://news.ycombinator.com/item?id=46435614
https://nvd.nist.gov/vuln/detail/CVE-2025-69277
https://github.com/paragonie/sodium_compat
https://www.mend.io/vulnerability-database/CVE-2025-69277

Severity Score

Weakness Type (CWE)

Incomplete List of Disallowed Inputs

CWE-184

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

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