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Response snapshot Oct 27, 2026, 17:26 UTC

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VulnerabilityCVE-2026-22696

dcap-qvl has Missing Verification for QE Identity

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.

At a glance

Exploited
Not known
Severity
9.3 Critical (CVSS 4.0)
Chance of exploitation
Not estimated
Sources
1 source

What to do

GitHub lists first patched versions: dcap-qvl: 0.3.9; @phala/dcap-qvl: 0.3.9; dcap-qvl: 0.3.9. Confirm the affected range and upgrade guidance in the exact advisory.

Read GitHub-reviewed advisory GHSA-796p-j2gh-9m2q (opens a new tab)

What happened

## Impact This vulnerability 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.

## Consequences 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.

## Who is impacted All deployments utilizing the dcap-qvl library for SGX or TDX quote verification are affected.

Continue reading

## Patches 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`.

## Workarounds There are no known workarounds for this vulnerability. Users must upgrade to the patched version to ensure that QE Identity collateral is properly verified.

## Credit This bug was reported by Rahul Saxena .

Affected package ranges reported by GitHub: dcap-qvl: < 0.3.9 @phala/dcap-qvl: <= 0.3.0 @phala/dcap-qvl-web: <= 0.3.3 @phala/dcap-qvl-node: <= 0.3.3 dcap-qvl: < 0.3.9

Scores and how they were measured

CVSS base severity

9.3

Version 4.0As of

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

Measurement source (opens a new tab)

How bad it is if exploited. Not a prediction of exploitation or proof you are exposed.

EPSS probability

Not available

A model's estimate of exploitation in the next 30 days, not certainty or your own risk.

Related technology

Sources

  1. Primary source

    GitHub-reviewed advisory GHSA-796p-j2gh-9m2q (opens a new tab)

    The public advisory supplies the description, affected package/version ranges, and any listed CVSS metric. GitHub review is not local review.

    Published Checked

  2. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-796p-j2gh-9m2q, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, October 27). dcap-qvl has Missing Verification for QE Identity (CVE-2026-22696). https://kevwire.com/record/CVE-2026-22696

MLA

"dcap-qvl has Missing Verification for QE Identity (CVE-2026-22696)." KEVWire, 27 Oct. 2026, kevwire.com/record/CVE-2026-22696.

Chicago

KEVWire. "dcap-qvl has Missing Verification for QE Identity (CVE-2026-22696)." Last modified October 27, 2026. https://kevwire.com/record/CVE-2026-22696.

Evidence summary (plain text)

dcap-qvl has Missing Verification for QE Identity (Jan 26, 2026).
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.

Users of the `@phala/dcap-qvl-node` and `@phala/dcap-qvl-web` packages should switch to the pure JavaScript implementation, `@phala/dcap-qvl`.
CVSS 9.3 (version 4.0; evidence as of Oct 27, 2026; https://github.com/advisories/GHSA-796p-j2gh-9m2q).
Sources:
GitHub-reviewed advisory GHSA-796p-j2gh-9m2q: https://github.com/advisories/GHSA-796p-j2gh-9m2q
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc
Record ID: CVE-2026-22696.
Record origin: Ingested record.
AI evidence: Not assessed.
Known exploitation: Not assessed.
Zero-day status: Not assessed. KEV membership alone does not establish zero-day status.
About this data

This record was ingested from a data source. Retrieved: Oct 27, 2026, 17:25 UTC. Ingestion is not an independent editorial investigation.

A CISA KEV listing documents known exploitation, not necessarily a zero-day; absence from the catalog does not prove a vulnerability has never been exploited.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

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Record details

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