CVE-2026-89087

Index Out‑of‑Bounds Vulnerability in OCaml cstruct

Published Sep 10, 2026 CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
Description
The cstruct package before 6.3.0 for OCaml mishandles indexes.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
References
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ocaml
Ocaml cstruct
Vendors & Products Ocaml
Ocaml cstruct
Type Values Removed Values Added
Title Index Out‑of‑Bounds Vulnerability in OCaml cstruct
Type Values Removed Values Added
Description The cstruct package before 6.3.0 for OCaml mishandles indexes.
Weaknesses CWE-573
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 14, 2026, 3:41 PM
Reserved
Sep 10, 2026, 7:55 PM
Status
Deferred
Published
Sep 10, 2026, 8:17 PM
Modified
Sep 22, 2026, 8:00 PM