---
title: "CVE-2026-102748: Dgraph: Zero Unauthenticated HTTP Admin removeNode Denial of Service"
url: https://erroneo.us/security/cve/CVE-2026-102748/
description: "CVE-2026-102748 (github.com/dgraph-io/dgraph/v25 (Go)): Dgraph is an open source distributed GraphQL database. Prior to 25.4.0, Dgraph Zero registers…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-10-14
date_modified: 2026-10-15
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-102748"
kev: false
cvss: 9.2
epss: 0.00486
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-102748: Dgraph: Zero Unauthenticated HTTP Admin removeNode Denial of Service

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.5% , percentile 41: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 41% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes github.com/dgraph-io/dgraph/v25 (Go) <= 25.3.8, fixed in 25.4.0 . Check your lockfile, including transitive dependencies.

## What it is

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 reach the Zero HTTP port can read topology through /state, allocate identifiers through /assign, access the exposed /moveTablet administrative route, or remove membership through /removeNode, disrupting the Zero control plane and destabilizing Alpha nodes that depend on Zero. The route registration occurs in dgraph/cmd/zero/run.go, and the demonstrated membership-removal path reaches Server.RemoveNode and ProposePeerRemoval. This issue is fixed in version 25.4.0.

## Affected packages

- Go `github.com/dgraph-io/dgraph/v25` <= 25.3.8 → fixed: 25.4.0

## Affected products (CVE record)

- dgraph-io dgraph: < 25.4.0

## Severity

- GitHub_M CVSS 4.0: 9.2 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:H`
- GitHub CVSS 4.0: 9.2 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.49% probability of exploitation activity in the next 30 days; percentile 41.

## Sources

- [GitHub Advisory GHSA-qj98-gp63-54xj](https://github.com/advisories/GHSA-qj98-gp63-54xj)
- [CVE.org record CVE-2026-102748](https://www.cve.org/CVERecord?id=CVE-2026-102748)
- [NVD entry CVE-2026-102748](https://nvd.nist.gov/vuln/detail/CVE-2026-102748)
- [github.com](https://github.com/dgraph-io/dgraph/security/advisories/GHSA-qj98-gp63-54xj)
- [github.com](https://github.com/dgraph-io/dgraph/commit/c32f6041387fa631dbc057e265b71aec3384ead1)
- [github.com](https://github.com/dgraph-io/dgraph/releases/tag/v25.4.0)

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Source page: https://erroneo.us/security/cve/CVE-2026-102748/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt