Advisory record · GHSA-c35q-vxrp-ph26

Nautobot: Webhook definitions could be used for server-side request forgery (SSRF)

CVSS 8.5 HighEPSS 0.0024 · 14th percentile

Published by the GitHub Advisory Database at 13 May 2026, 15:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
nautobotPyPI>=3.0.0a2, <3.1.2 || <2.4.333.1.2, 2.4.33
Identifiers
GHSA-c35q-vxrp-ph26 · CVE-2026-44797 · PYSEC-2026-2227
Weakness (CWE)
CWE-918
Published
13 May 2026
Updated
13 Jul 2026

Machine-written summary

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

Nautobot versions before 2.4.33, and from 3.0.0a2 before 3.1.2, allow webhook definitions to send requests to hosts and IP addresses that should not be reachable, similar to server-side request forgery. An attacker needs an account with permission to add or change Webhook records, and can use it to make the Nautobot server send requests to internal or otherwise restricted targets. Upgrade to 2.4.33 or 3.1.2. Review which users hold add or change permissions on Webhook records and audit existing Webhook records.

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
8.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0024, the 14th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:04 UTC First seen by agentprime
  2. 31 Oct 2026, 15:04 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.