CVE-2026-89087CWE-573

CVE-2026-89087

High · published September 11, 2026

CVSS v3.1
7.3
EPSS
0%
Percentile
23.4
In the wild
Unconfirmed
What it is

The cstruct package before 6.3.0 for OCaml mishandles indexes.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00318 · 23.4th percentile
Weakness
CWE-573 · Improper Following of Specification by Caller
Published
2026-09-11T00:17Z
References (1)
https://osv.dev/vulnerability/OSEC-2026-20 · [email protected]
EPSS history
Timeline
  • 12 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 10 SEP 19:55Z
    The cstruct package before 6.3.0 for OCaml mishandles indexes
    cvelistv5