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CVE-2026-115408— ML-KEM key-pair lookup can bind an unrelated or attacker-planted public key, exposing encapsulated shared secrets

Quick assessment

Affected
Eclipse Foundation Eclipse KeyPont
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 的 且 版本中，ML-KEM 密钥对查找函数（ 、 、 ）仅通过 或 定位 ML-KEM 密钥对的公钥部分，而从未将其与私钥进行验证。此外，即使私钥未设置 ，系统仍会执行“仅 ID"的回退搜索，导致搜索模板退化为仅匹配公钥类别和 ML-KEM 密钥类型，从而返回令牌上第一个 ML-KEM 公钥。对由此生成的密钥对调用 时，会将新生成的共享密钥加密至该公钥，使得密钥的所有者（而非调用者原本查找的私钥持有者）能够恢复该共享密钥。若攻击者能够在令牌上建立未认证会话，并植入一个携带受害者 或 的公钥对象（ ），则攻击者

CVSS 5.5 · Medium
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I. Basic Information for CVE-2026-115408

Vulnerability Information
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Vulnerability Title
ML-KEM key-pair lookup can bind an unrelated or attacker-planted public key, exposing encapsulated shared secrets
Source: CVE Program / CVE List V5
Vulnerability Description
In `github.com/eclipse-keypont/crypto11/v2` versions `>= 2.0.0-rc3, <= 2.0.0-rc8`, the ML-KEM key-pair lookup functions (`FindMLKEMKeyPair`, `FindMLKEMKeyPairs`, `FindMLKEMKeyPairsWithAttributes`) locate the public half of an ML-KEM key pair by `CKA_ID`/`CKA_LABEL` and never verify it against the private key. In addition, the "ID only" fallback search runs even when the private key has no `CKA_ID`, so the search template reduces to the public-key class and the ML-KEM key type and the first ML-KEM public key on the token is returned. `Encapsulate()` on the resulting key pair encrypts the fresh shared secret to that key, so its owner — not the holder of the private key the caller looked up — can recover the secret. An attacker who can open an unauthenticated session on the token and plant a public `CKK_ML_KEM` object carrying the victim's `CKA_ID`/`CKA_LABEL` receives the shared secrets for encapsulations performed through the substituted key pair, compromising the confidentiality of those secrets and of everything protected by keys derived from them. The v1 module paths have no ML-KEM support and are not affected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Eclipse Foundation Eclipse KeyPont 2.0.0-rc3 ~ 2.0.0-rc8 -

II. Public POCs for CVE-2026-115408

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III. Intelligence Information for CVE-2026-115408

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Other References for CVE-2026-115408 (3)

Same Patch Batch · Eclipse Foundation · 2026-10-27 · 3 CVEs total

CVE-2026-115216 9.1 CRITICAL Eclipse ioFog Operator disables TLS certificate verification when sending Controller and O
CVE-2026-113644 5.5 MEDIUM iofogctl command injection via Controller provisioning response

IV. Related Vulnerabilities

Same vendor: Eclipse Foundation
Same weakness: CWE-345