Medium [CVE-2026-79717] Galaxy_ng: galaxy_ng: blind ssrf via namespace avatar_url with no private-address restriction
This medium-severity Red Hat Linux advisory covers CVE-2026-79717 affecting Red Hat Ansible Automation Platform 2.
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Summary
A server-side request forgery (SSRF) vulnerability was found in galaxy_ng, the Ansible Galaxy server plugin for Pulp. An authenticated user with namespace management permissions can set a namespace avatar URL to an arbitrary address, including internal networks, loopback, or cloud instance metadata endpoints.
A background worker fetches that URL without checking the destination, which lets the attacker probe internal services and enumerate reachable IP addresses. The HTTP client is also configured without an overall timeout, so a slow or non-responsive target can pin workers and cause a denial of service.
This vulnerability is rated as Moderate because an authenticated user with namespace-change permission can cause a Pulp worker to request arbitrary internal addresses. The SSRF is blind: response bodies are discarded unless they look like an image, so cloud-metadata secrets are not returned to the attacker.
The attacker can still enumerate reachable internal IP addresses and ports from the worker's network, and can pin workers with slow endpoints. Red Hat Ansible Automation Platform ships galaxy_ng as Private Automation Hub (python-galaxy-ng and hub container images in AAP 2.4 through 2.7).
RHEL and Fedora do not ship this component as a base OS package. Red Hat severity: Moderate — CVSS 6.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L).
Weakness: CWE-918.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 51 minutes ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 51 minutes ago·verify at source
Mitigation checklist
- There is no complete mitigation for this vulnerability. The following measures can reduce risk: 1. Restrict galaxy.change_namespace and galaxy.add_namespace to trusted administrators only, so fewer users can trigger avatar downloads. 2. In cloud deployments, protect instance metadata with hop-limited controls such as AWS IMDSv2 with HttpPutResponseHopLimit=1. 3. Apply egress filtering on Pulp worker nodes so they cannot reach RFC1918, loopback, link-local, or cloud metadata addresses that are not required for normal Galaxy operation.
Official advisory · high-confidence parse· fetched 51 minutes ago·verify at source
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