Vulnerability · Published Dec 31, 2025 · Assigned by mitre
CVE-2025-69277
Medium 4.5
In plain English
A medium-severity security flaw in libsodium from libsodium. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.5Medium
Exploit odds (30 days)0.2%top 92.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | libsodium | 1.0.19-r1 | ALPINE-CVE-2025-69277 |
| Alpine:v3.21 | libsodium | 1.0.20-r1 | ALPINE-CVE-2025-69277 |
| Alpine:v3.22 | libsodium | 1.0.20-r1 | ALPINE-CVE-2025-69277 |
| Alpine:v3.23 | libsodium | 1.0.20-r1 | ALPINE-CVE-2025-69277 |
| Alpine:v3.24 | libsodium | 1.0.20-r1 | ALPINE-CVE-2025-69277 |
| Alpine:v3.23 | py3-pynacl | 1.6.2-r0 | ALPINE-CVE-2025-69277 |
| Alpine:v3.24 | py3-pynacl | 1.6.2-r0 | ALPINE-CVE-2025-69277 |
| Debian:12 | libsodium | 1.0.18-1+deb12u1 | DEBIAN-CVE-2025-69277 |
| Debian:12 | libsodium | 1.0.18-1+deb12u1 | DSA-6094-1 |
| Debian:13 | libsodium | 1.0.18-1+deb13u1 | DEBIAN-CVE-2025-69277 |
| Debian:13 | libsodium | 1.0.18-1+deb13u1 | DSA-6094-1 |
| Debian:14 | libsodium | 1.0.18-2 | DEBIAN-CVE-2025-69277 |
| Packagist | paragonie/sodium_compat | 2.5.0 | GHSA-mrfv-m5wm-5w6w |
| Packagist | paragonie/sodium_compat | 1.24.0 | GHSA-mrfv-m5wm-5w6w |
| PyPI | hdwallet | 3.6.1 | PYSEC-2026-1448 |
| PyPI | hdwallet | 3.6.1 | GHSA-mrfv-m5wm-5w6w |
| PyPI | pynacl | 1.6.2 | PYSEC-2026-3002 |
| PyPI | pynacl | 1.6.2 | GHSA-mrfv-m5wm-5w6w |
| Ubuntu:22.04:LTS | libsodium | 1.0.18-1ubuntu0.22.04.1 | USN-7949-1 |
| Ubuntu:22.04:LTS | libsodium | 1.0.18-1ubuntu0.22.04.1 | UBUNTU-CVE-2025-69277 |
| Ubuntu:24.04:LTS | libsodium | 1.0.18-1ubuntu0.24.04.1 | USN-7949-1 |
| Ubuntu:24.04:LTS | libsodium | 1.0.18-1ubuntu0.24.04.1 | UBUNTU-CVE-2025-69277 |
| Ubuntu:25.10 | libsodium | 1.0.18-1ubuntu0.25.10.1 | UBUNTU-CVE-2025-69277 |
| Ubuntu:25.10 | libsodium | 1.0.18-1ubuntu0.25.10.1 | USN-7949-1 |
Affected products (as reported)
Weakness: CWE-184 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
References
- https://github.com/jedisct1/libsodium/commit/ad3004ec8731730e93fcfbbc824e67eadc1c1bae
- https://00f.net/2025/12/30/libsodium-vulnerability/
- https://news.ycombinator.com/item?id=46435614
- https://ianix.com/pub/ed25519-deployment.html
- https://github.com/pyca/pynacl/issues/920
- https://github.com/pyca/pynacl/commit/ecf41f55a3d8f1e10ce89c61c4b4d67f3f4467cf
- https://github.com/pyca/pynacl/commit/96314884d88d1089ff5f336dba61d7abbcddbbf7
- https://lists.debian.org/debian-lts-announce/2026/01/msg00004.html