What is GHSA-5v5p-5xxr-9xf8?

GHSA-5v5p-5xxr-9xf8 is a security advisory published by GitHub Security Advisories with Medium severity. An issue was discovered in the mirage-crypto-ec function before 2.2.0 for OCaml. The ECDSA...

Which CVE IDs does GHSA-5v5p-5xxr-9xf8 cover?

GHSA-5v5p-5xxr-9xf8 covers the following CVE IDs: CVE-2026-87733. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-5v5p-5xxr-9xf8?

GHSA-5v5p-5xxr-9xf8 has a CVSS v3 base score of 6.2, published by GitHub Security Advisories.

GHSA-5v5p-5xxr-9xf8MediumCVSS 6.2

An issue was discovered in the mirage-crypto-ec function before 2.2.0 for OCaml. The ECDSA...

Vendor

GitHub Security Advisories

Published

September 9, 2026

Last Modified

September 9, 2026

🔗 CVE IDs covered (1)

CVE-2026-87733 →

📋 Description

An issue was discovered in the mirage-crypto-ec function before 2.2.0 for OCaml. The ECDSA functions {P256,P384,P521}.Dsa.pub_of_octets accept 0x00, the encoding of the point at infinity, as a public key. With that public key, signatures can be forged without a private key.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-87733
https://osv.dev/vulnerability/OSEC-2026-13
https://github.com/advisories/GHSA-5v5p-5xxr-9xf8