---
id: CVE-2026-87736
title: An issue was discovered in the mirage-crypto-ec package before 2.3.0 for OCaml
summary: >-
  An issue was discovered in the mirage-crypto-ec package before 2.3.0 for
  OCaml. There is an EC public key out-of-bounds read for compressed points.
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-125
vendor: OCaml
product: mirage-crypto-ec
affected:
  - mirage-crypto-ec < 2.3.0
published: '2026-09-09'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T16:17:21.733'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-87736'
references:
  - url: 'https://osv.dev/vulnerability/OSEC-2026-15'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
epss: 0.00212
epssPercentile: 0.1181
ingestedAt: '2026-09-14T14:02:29.701Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T15:37:48.891674Z'
---

## Overview

An issue was discovered in the mirage-crypto-ec package before 2.3.0 for OCaml. There is an EC public key out-of-bounds read for compressed points.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.