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CVE-2026-87735

Quick assessment

Affected
OCaml mirage-crypto-pk
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 OCaml 的 mirage-crypto-pk 包 2.3.0 之前的版本中发现了问题。在执行 RSA 解密或加密时，对于较小的消息会触发一个未记录的异常。

CVSS 4.3 · Medium
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I. Basic Information for CVE-2026-87735

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1284
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OCaml mirage-crypto-pk 0 ~ 2.3.0 -

II. Public POCs for CVE-2026-87735

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III. Intelligence Information for CVE-2026-87735

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Other References for CVE-2026-87735 (1)

Same Patch Batch · OCaml · 2026-09-09 · 7 CVEs total

CVE-2026-87734 7.5 HIGH OCaml utcp 0.0.6 前 远程拒绝服务
CVE-2026-87733 6.2 MEDIUM OCaml mirage-crypto-ec 2.2.0前ECDSA签名伪造
CVE-2026-87732 6.2 MEDIUM OCaml mirage-crypto <2.2.0解密缓冲区信息泄露
CVE-2026-87737 5.9 MEDIUM mirage-crypto-ec 2.4.0前时序侧信道漏洞
CVE-2026-57825 5.7 MEDIUM OCaml opam 2.5.2前沙箱保护绕过漏洞
CVE-2026-87736 4.3 MEDIUM mirage-crypto-ec 2.3.0前 椭圆曲线公钥越界读取

IV. Related Vulnerabilities

Same vendor: OCaml
Same weakness: CWE-1284

V. Comments for CVE-2026-87735

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