The cstruct package before 6.3.0 for OCaml mishandles indexes.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Ocaml
  • Cstruct

No data.

No data.

References
Link Providers
https://osv.dev/vulnerability/OSEC-2026-20 cve-icon cve-icon
History

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Sun, 13 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Ocaml
Ocaml cstruct
Vendors & Products Ocaml
Ocaml cstruct

Thu, 10 Sep 2026 23:30:00 +0000

Type Values Removed Values Added
Title Index Out‑of‑Bounds Vulnerability in OCaml cstruct

Thu, 10 Sep 2026 20:00:00 +0000

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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-09-10T19:55:44.327Z

Updated: 2026-09-14T15:41:31.680Z

Reserved: 2026-09-10T19:55:43.954Z

Link: CVE-2026-89087

cve-icon Vulnrichment

Updated: 2026-09-14T15:39:46.917Z

cve-icon NVD

Status : Deferred

Published: 2026-09-10T20:17:32.247

Modified: 2026-09-22T20:00:03.713

Link: CVE-2026-89087

cve-icon Redhat

No data.