CVE-2026-22696— dcap-qvl 数据伪造问题漏洞
一分钟漏洞结论
影响对象
Phala-Network dcap-qvl
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
dcap-qvl是Phala开源的一个机密计算开发库。 dcap-qvl 0.3.9之前版本存在数据伪造问题漏洞，该漏洞源于加密验证过程存在关键缺陷，可能允许攻击者伪造QE身份数据并绕过远程证明安全模型。
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一、 漏洞 CVE-2026-22696 基础信息
漏洞信息
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Vulnerability Title
dcap-qvl has Missing Verification for QE Identity
来源: CVE Program / CVE List V5
Vulnerability Description
dcap-qvl implements the quote verification logic for DCAP (Data Center Attestation Primitives). A vulnerability present in versions prior to 0.3.9 involves a critical gap in the cryptographic verification process within the dcap-qvl. The library fetches QE Identity collateral (including qe_identity, qe_identity_signature, and qe_identity_issuer_chain) from the PCCS. However, it skips to verify the QE Identity signature against its certificate chain and does not enforce policy constraints on the QE Report. An attacker can forge the QE Identity data to whitelist a malicious or non-Intel Quoting Enclave. This allows the attacker to forge the QE and sign untrusted quotes that the verifier will accept as valid. Effectively, this bypasses the entire remote attestation security model, as the verifier can no longer trust the entity responsible for signing the quotes. All deployments utilizing the dcap-qvl library for SGX or TDX quote verification are affected. The vulnerability has been patched in dcap-qvl version 0.3.9. The fix implements the missing cryptographic verification for the QE Identity signature and enforces the required checks for MRSIGNER, ISVPRODID, and ISVSVN against the QE Report. Users of the `@phala/dcap-qvl-node` and `@phala/dcap-qvl-web` packages should switch to the pure JavaScript implementation, `@phala/dcap-qvl`. There are no known workarounds for this vulnerability. Users must upgrade to the patched version to ensure that QE Identity collateral is properly verified.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
来源: CVE Program / CVE List V5
Vulnerability Title
dcap-qvl 数据伪造问题漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
dcap-qvl是Phala开源的一个机密计算开发库。 dcap-qvl 0.3.9之前版本存在数据伪造问题漏洞，该漏洞源于加密验证过程存在关键缺陷，可能允许攻击者伪造QE身份数据并绕过远程证明安全模型。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Phala-Network | dcap-qvl | < 0.3.9 | - |
|
二、漏洞 CVE-2026-22696 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-22696 厂商安全公告 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-22696
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