# OCaml vulnerabilities

Source: https://junglewise.ai/threats/vendors/ocaml  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/ocaml.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 9 vulnerabilities in OCaml: 0 in the last 7 days and 7 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-89087, was published on 10 September 2026. Nothing was published in the last eight weeks. 1 technology has a page of its own.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 7
- All time: 9 (0 critical, 0 exploited in the wild)

## About OCaml

The OCaml community and core development team maintain the OCaml programming language and its ecosystem.

## Latest OCaml vulnerabilities

- [CVE-2026-89087: cstruct indexing bugs in filter_map, tail, cuts, and find](https://junglewise.ai/threats/cve-2026-89087-cstruct-indexing-bugs-in-filter-map-tail-cuts-and-find) (high, CVSS 7.3, published 10 Sep 2026)
- [CVE-2026-87737: mirage-crypto-ec timing side channel in NIST elliptic-curve scalar multiplication](https://junglewise.ai/threats/cve-2026-87737-mirage-crypto-ec-timing-side-channel-in-nist-elliptic-curve) (medium, CVSS 5.9, published 9 Sep 2026)
- [CVE-2026-87736: Mirage-Crypto-EC out-of-bounds read in EC public key parsing](https://junglewise.ai/threats/cve-2026-87736-mirage-crypto-ec-out-of-bounds-read-in-ec-public-key-parsing) (medium, CVSS 4.3, published 9 Sep 2026)
- [CVE-2026-87734: utcp out-of-order segment reassembly denial of service](https://junglewise.ai/threats/cve-2026-87734-utcp-out-of-order-segment-reassembly-denial-of-service) (high, CVSS 7.5, published 9 Sep 2026)
- [CVE-2026-87733: Mirage-crypto-ec ECDSA signature forgery via point at infinity](https://junglewise.ai/threats/cve-2026-87733-mirage-crypto-ec-ecdsa-signature-forgery-via-point-at-infinity) (medium, CVSS 6.2, published 9 Sep 2026)
- [CVE-2026-57825: opam sandbox escape using symlinks in .install files](https://junglewise.ai/threats/cve-2026-57825-opam-sandbox-escape-using-symlinks-in-install-files) (medium, CVSS 5.7, published 9 Sep 2026)
- [CVE-2026-82481: OCaml cohttp directory traversal via URL decoding](https://junglewise.ai/threats/cve-2026-82481-ocaml-cohttp-directory-traversal-via-url-decoding) (info, published 29 Aug 2026)
- [CVE-2026-41082: OCaml opam path traversal in .install field](https://junglewise.ai/threats/cve-2026-41082-ocaml-opam-path-traversal-in-install-field) (high, CVSS 7.3, published 16 Apr 2026)
- [CVE-2026-28364: OCaml Marshal deserialization buffer over-read in runtime/intern.c](https://junglewise.ai/threats/cve-2026-28364-ocaml-marshal-deserialization-buffer-over-read-in-runtime-intern) (high, CVSS 7.9, published 27 Feb 2026)

## Most severe OCaml vulnerabilities

- [CVE-2026-28364: OCaml Marshal deserialization buffer over-read in runtime/intern.c](https://junglewise.ai/threats/cve-2026-28364-ocaml-marshal-deserialization-buffer-over-read-in-runtime-intern) (high, CVSS 7.9, published 27 Feb 2026)
- [CVE-2026-87734: utcp out-of-order segment reassembly denial of service](https://junglewise.ai/threats/cve-2026-87734-utcp-out-of-order-segment-reassembly-denial-of-service) (high, CVSS 7.5, published 9 Sep 2026)
- [CVE-2026-89087: cstruct indexing bugs in filter_map, tail, cuts, and find](https://junglewise.ai/threats/cve-2026-89087-cstruct-indexing-bugs-in-filter-map-tail-cuts-and-find) (high, CVSS 7.3, published 10 Sep 2026)
- [CVE-2026-41082: OCaml opam path traversal in .install field](https://junglewise.ai/threats/cve-2026-41082-ocaml-opam-path-traversal-in-install-field) (high, CVSS 7.3, published 16 Apr 2026)
- [CVE-2026-87733: Mirage-crypto-ec ECDSA signature forgery via point at infinity](https://junglewise.ai/threats/cve-2026-87733-mirage-crypto-ec-ecdsa-signature-forgery-via-point-at-infinity) (medium, CVSS 6.2, published 9 Sep 2026)
- [CVE-2026-87737: mirage-crypto-ec timing side channel in NIST elliptic-curve scalar multiplication](https://junglewise.ai/threats/cve-2026-87737-mirage-crypto-ec-timing-side-channel-in-nist-elliptic-curve) (medium, CVSS 5.9, published 9 Sep 2026)
- [CVE-2026-57825: opam sandbox escape using symlinks in .install files](https://junglewise.ai/threats/cve-2026-57825-opam-sandbox-escape-using-symlinks-in-install-files) (medium, CVSS 5.7, published 9 Sep 2026)
- [CVE-2026-87736: Mirage-Crypto-EC out-of-bounds read in EC public key parsing](https://junglewise.ai/threats/cve-2026-87736-mirage-crypto-ec-out-of-bounds-read-in-ec-public-key-parsing) (medium, CVSS 4.3, published 9 Sep 2026)
- [CVE-2026-82481: OCaml cohttp directory traversal via URL decoding](https://junglewise.ai/threats/cve-2026-82481-ocaml-cohttp-directory-traversal-via-url-decoding) (info, published 29 Aug 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 1 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 6 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## OCaml technologies

- [OCaml Mirage-Crypto-Ec](https://junglewise.ai/threats/technologies/mirage-crypto-ec): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "OCaml vulnerabilities", https://junglewise.ai/threats/vendors/ocaml, 9 November 2026.