| Name | CVE-2026-89087 |
| Description | The cstruct package before 6.3.0 for OCaml mishandles indexes. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| ocaml-cstruct (PTS) | bookworm | 6.1.1-1 | vulnerable |
| trixie | 6.2.0-3 | vulnerable | |
| forky, sid | 6.2.0-4 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| ocaml-cstruct | source | (unstable) | (unfixed) |
https://osv.dev/vulnerability/OSEC-2026-20
https://github.com/mirage/ocaml-cstruct/pull/324 (v6.3.0)