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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 (6)

https://ianix.com/pub/ed25519-deployment.html
https://github.com/jedisct1/libsodium/commit/ad3004ec8731730e93fcfbbc824e67eadc1c1bae
https://news.ycombinator.com/item?id=46435614
https://nvd.nist.gov/vuln/detail/CVE-2025-69277
https://00f.net/2025/12/30/libsodium-vulnerability/
https://www.mend.io/vulnerability-database/CVE-2025-69277

Severity Score

Weakness Type (CWE)

Incomplete List of Disallowed Inputs

CWE-184

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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