CVE-2026-87733Medium· 6.2▾ TwilightPoC availableAn 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…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 34.1 · likelihood 0 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 10.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Exploit / PoC code exists
0.1%
0.1% → 0.2%
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-87736Medium· 4.3An issue was discovered in the mirage-crypto-ec package before 2.3.0 for OCaml
CVE-2026-87737Medium· 5.9An issue was discovered in the mirage-crypto-ec package before 2.4.0 for OCaml
CVE-2026-87734High· 7.5An issue was discovered in the utcp package before 0.0.6 for OCaml
CVE-2026-89086Critical· 9.1In the jose package before 0.11.0 for OCaml, library calls to validate an RSA signature only confirm that PKCS #1 decoding succeeds, and proceed to declare the signature valid without the required steps that involve the public key.
CVE-2026-87732Medium· 6.2An issue was discovered in the mirage-crypto package before 2.2.0 for OCaml
CVE-2026-106072Medium· 6.7nodejs: nodejs: Authentication bypass via non-canonical IPv4 hostname verification (CVE-2026-106072)