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CVE-2026-102748

Dgraph is an open source distributed GraphQL database.

Published Oct 14, 2026 · updated Oct 15, 2026

### Summary Dgraph exposes a Zero HTTP administrative surface that is unauthenticated when port is reachable. The exposed routes include: - - - - An unauthenticated request to on a single-node standalone deployment breaks the Zero control plane and leaves Alpha repeatedly failing to reconnect to . ### Details The issue exists because Zero administrative HTTP endpoints are registered directly without any authentication or IP-whitelist wrapper. Relevant code paths: - - - - The relevant behavior is: - by default - accepts attacker-controlled and - forwards those directly into - for , immediately calls This means a remote unauthenticated caller can directly trigger destructive membership operations if is exposed. ### PoC ### Read state without authentication Observed response included: - Zero node - - - cluster topology and tablet state ### Write-capable route without authentication Observed response: This confirms the admin plane is not merely informational. ### Destructive unauthenticated removeNode Observed result: Immediately afterward: Observed result: Alpha health was still locally reachable, but Alpha logs began repeatedly reporting: This confirms the request reached the destructive path and disrupted the Zero control plane. ### Impact Any deployment that exposes Zero HTTP on exposes destructive unauthenticated administrative capabilities. An attacker can: - read cluster topology and control-plane metadata - allocate IDs and timestamps - invoke destructive membership actions - disrupt the Zero control plane - indirectly destabilize Alpha nodes that depend on Zero connectivity This is a high-value unauthenticated administrative exposure and, in the reproduced case, a practical denial of service against the control plane.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 14, 2026 · NIST NVD

    Detected

    Dgraph is an open source distributed GraphQL database. Prior to 25.4.0, Dgraph Zero registers administrative HTTP routes on port 6080 without authentication when the administrative interface is enabled. The /removeNode route accepts attacker-controlled id and group values and passes them to Server.RemoveNode, where group 0 can trigger ProposePeerRemoval. A remote unauthenticated attacker who can r

  2. Oct 14, 2026 · NIST NVD

    Updated

    Dgraph is an open source distributed GraphQL database. Prior to 25.4.0, Dgraph Zero registers administrative HTTP routes on port 6080 without authentication when the administrative interface is enabled. The /removeNode route accepts attacker-controlled id and group values and passes them to Server.RemoveNode, where group 0 can trigger ProposePeerRemoval. A remote unauthenticated attacker who can r

  3. Oct 15, 2026 · NIST NVD

    Updated

    Dgraph is an open source distributed GraphQL database. Prior to 25.4.0, Dgraph Zero registers administrative HTTP routes on port 6080 without authentication when the administrative interface is enabled. The /removeNode route accepts attacker-controlled id and group values and passes them to Server.RemoveNode, where group 0 can trigger ProposePeerRemoval. A remote unauthenticated attacker who can r

  4. Oct 15, 2026 · GitHub Advisory Database

    Updated

    ### Summary Dgraph exposes a Zero HTTP administrative surface that is unauthenticated when port is reachable. The exposed routes include: - - - - An unauthenticated request to on a single-node standalone deployment breaks the Zero control plane and leaves Alpha repeatedly failing to reconnect to . ### Details The issue exists because Zero administrative HTTP endpoints are registered directly witho

Affected

  • go github.com/dgraph-io/dgraph/v25<= 25.3.8

Sources

  • CVE.orgVulnerability recordCVE-2026-102748

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-102748

    30-day exploitation probability 0.5%

    first.org
  • GitHub Advisory DatabasePackage advisoryGHSA-qj98-gp63-54xj

    Dgraph: Zero Unauthenticated HTTP Admin removeNode Denial of Service

    github.com
  • NIST NVDVulnerability recordCVE-2026-102748

    Dgraph is an open source distributed GraphQL database. Prior to 25.4.0, Dgraph Zero registers administrative HTTP routes on port 6080 without authentication when the administrative interface is enabled. The /removeNode route accepts attacker-controlled id and group values and pas

    nvd.nist.gov

References