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Vulnerability details

CVE-2026-40173

dgraph-io dgraph

Dgraph: Unauthenticated pprof endpoint leaks admin auth token

CVSS 3.1
9.4Critical

Official description

Dgraph is an open source distributed GraphQL database. Versions 25.3.1 and prior contain an unauthenticated credential disclosure vulnerability where the /debug/pprof/cmdline endpoint is registered on the default mux and reachable without authentication, exposing the full process command line including the admin token configured via the --security "token=..." startup flag. An attacker can retrieve the leaked token and reuse it in the X-Dgraph-AuthToken header to gain unauthorized access to admin-only endpoints such as /admin/config/cache_mb, bypassing the adminAuthHandler token validation. This enables unauthorized privileged administrative access including configuration changes and operational control actions in any deployment where the Alpha HTTP port is reachable by untrusted parties. This issue has been fixed in version 25.3.2.

CVSS scores

ScoreVersionSourceVector
9.4Critical 3.1 CVEProject cvelistV5 (CNA) (GitHub_M) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Affected products

VendorProductVersionsSource
dgraph-io dgraph < 25.3.2 CVEProject cvelistV5 (CNA)

References and advisories

2
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Details

Published
2026-04-16
Last updated
2026-04-16
State
Published
Assigner (CNA)
GitHub_M

Exploit prediction (EPSS)

0.5%
Probability of exploitation in 30 days
43.6%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
Proof of concept
Technical impact
Total

Weaknesses (CWE)

  • CWE-200
    Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-215
    Insertion of Sensitive Information Into Debugging Code