Advisory record · GHSA-6x26-5727-rrm9

Nezha's authenticated DDNS webhook configuration allows blind SSRF from the dashboard host

CVSS 6.4 MediumEPSS 0.0022 · 12th percentile

Published by the GitHub Advisory Database at 29 May 2026, 22:10 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/nezhahq/nezhaGo>=0.20.0, <2.0.102.0.10
github.com/naiba/nezhaGo>=0.20.0No fixed version yet
Identifiers
GHSA-6x26-5727-rrm9 · CVE-2026-47268 · GO-2026-5194
Weakness (CWE)
CWE-918
Published
29 May 2026
Updated
26 Jun 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Nezha (github.com/nezhahq/nezha) versions 0.20.0 to before 2.0.10 let an authenticated user with a DDNS webhook profile make the dashboard host send arbitrary HTTP requests to loopback or internal services. The response is not returned to the attacker, so this is blind SSRF. Upgrade to 2.0.10 or later. No fixed version is listed for github.com/naiba/nezha.

Written 6 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.4 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0022, the 12th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:06 UTC First seen by agentprime
  2. 31 Oct 2026, 15:06 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.