What is CVE-2026-87735?

CVE-2026-87735 is a medium-severity vulnerability in Ocaml Mirage-Crypto-Pk, classified under Improper Validation of Specified Quantity in Input. CVSS score: 4.3/10. Published 2026-09-09.

How severe is CVE-2026-87735?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Ocaml Mirage-Crypto-Pk

CVE-2026-87735

An issue was discovered in the mirage-crypto-pk package before 2.3.0 for OCaml. There is an undocumented exception for a small message during RSA decryption or encryption.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Ocaml Mirage-crypto-pk

Weakness classification (CWE)

CWE-1284 — Improper Validation of Specified Quantity in Input

References

cve@mitre.org

Frequently asked questions

What is CVE-2026-87735?: CVE-2026-87735 is a medium-severity vulnerability in Ocaml Mirage-Crypto-Pk, classified under Improper Validation of Specified Quantity in Input. CVSS score: 4.3/10. Published 2026-09-09.
How severe is CVE-2026-87735?: Medium severity. CVSS v3 base score is 4.3 out of 10.