CVE-2026-71366: Awx: notification backends allow ssrf and credential leakage

Awaiting analysis

Published 24-08-2026Last modified 26-08-2026

Vulnerability summary

CVE-2026-71366 is a high (CVSS 7.7) Server-Side Request Forgery vulnerability. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 46.7% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 7.7, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

7.7/10

010

High · v3.1 (CVE.org)

EPSS score

0.56%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2

RHSA-2026:59135 RHSA-2026:59136

Timeline

24-08-2026
PublishedVulnerability first disclosed.
26-08-2026
Last modifiedVulnerability information updated.

Description

A server-side request forgery (SSRF) vulnerability was found in multiple AWX notification backends. The webhook, Mattermost, Rocket.Chat, and Grafana notification backends use notification template URLs as direct HTTP request targets without validating the target address against private, loopback, or reserved IP ranges. An organization notification administrator can create notification templates pointing to internal or loopback addresses, causing the AWX control node to issue HTTP requests to services that are not externally accessible. Additionally, the webhook notification backend follows HTTP redirects and resends configured Basic Authentication credentials to redirect targets regardless of host change, allowing an attacker to exfiltrate notification credentials by redirecting to an attacker-controlled host. The Grafana backend sends its API key in the Authorization header to the configured target URL.