CVE-2026-4258
CVE-2026-4258
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
Versions of the package sjcl before 1.0.9 are vulnerable to Improper Verification of Cryptographic Signature due to missing point-on-curve validation in sjcl.ecc.basicKey.publicKey(). An attacker can recover a victim's ECDH private key by sending crafted off-curve public keys and observing ECDH outputs. The dhJavaEc() function directly returns the raw x-coordinate of the scalar multiplication result (no hashing), providing a plaintext oracle without requiring any decryption feedback.
CVSS 8.7 · Alta · EPSS 0,3% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
sjcl
- Versiones
- ≥ 0, < 1.0.9: Afectada (semver)
Actualiza a 1.0.9
org.webjars.npm:sjcl
- Versiones
- ≥ 0: Afectada (semver)
Sin corrección publicada
sjcl npm
- Intervalos de versiones afectados
- SEMVER: < 1.0.9
Actualiza a 1.0.9
Fuentes originales
- https://security.snyk.io/vuln/SNYK-JS-SJCL-15369617
- https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15751243
- https://gist.github.com/Kr0emer/2560f98edb10b0b34f2438cd63913c47
- https://github.com/bitwiseshiftleft/sjcl/blob/master/core/ecc.js%23L454-L461
- https://github.com/bitwiseshiftleft/sjcl/commit/ee307459972442a17beebc29dc331fffd8aff796
- https://nvd.nist.gov/vuln/detail/CVE-2026-4258