Medium severity6.2NVD Advisory· Published Sep 9, 2026
CVE-2026-87733
CVE-2026-87733
Description
An issue was discovered in the mirage-crypto-ec function before 2.2.0 for OCaml. The ECDSA functions {P256,P384,P521}.Dsa.pub_of_octets accept 0x00, the encoding of the point at infinity, as a public key. With that public key, signatures can be forged without a private key.
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Affected products
1- Range: <2.2.0
Patches
Vulnerability mechanics
References
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