CVE-2026-87737 PUBLISHED

Assigner: mitre
Reserved: 09.09.2026 Published: 09.09.2026 Updated: 09.09.2026

An issue was discovered in the mirage-crypto-ec package before 2.4.0 for OCaml. There is a timing side channel for NIST elliptic-curve scalar multiplication: the time required for a lookup can depend on a secret.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS Score: 5.9

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	OCaml
Product	mirage-crypto-ec
Versions	Default: unaffected affected from 0 to 2.4.0 (excl.)

References

https://osv.dev/vulnerability/OSEC-2026-17

Problem Types

CWE-208 Observable Timing Discrepancy CWE