CVE-2026-87737
Medium
Description
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.
SeverityMedium
CVSS5.9
Exploit probability27. percentile0.3%
ProductOcaml Mirage-crypto-ec
PublishedSep 9, 2026
First seenSep 9, 2026
Weakness typeCWE-208CWE-208
How to fix
Update
- OCaml mirage-crypto-ec2.4.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OCaml mirage-crypto-ec | v < 2.4.0 | 2.4.0 |
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