CVE-2026-40964

High

Description

Authentication Bypass in cf-auth-proxy in Cloud Foundry Foundation all installations allows an unauthenticated remote attacker to gain read access to every log and metric for every application and platform component via minting a JWT that the cf-auth-proxy accepts as a valid logs.admin token. Affected versions: - log-cache_release: all versions through v3.2.6 (inclusive); fixed in v3.2.7 or later - CF Deployment: all versions through v55.?.0 (inclusive); fixed in v55.?.0 or later (bundles log-cache_release v3.2.7)

SeverityHigh
CVSS7.5
Exploit probability—
ProductCloud Foundry Foundation Log-cache Release
PublishedJun 1, 2026
First seenJun 1, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Cloud Foundry Foundation log-cache_release2.7.0 ≤ v ≤ 3.2.6—
Cloud Foundry Foundation CF Deployment12.44.0 ≤ v ≤ 55.2.0—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.