CVE-2026-87733
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.2
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CWE
- CWE-295
- Published
- 2026-09-09
- Last modified
- 2026-09-09
Affected products
- OCaml mirage-crypto-ec
Weakness type
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