CVE-2026-40964
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk32th percentile - higher than 32% of all known CVEs
Summary
An authentication bypass vulnerability in cf-auth-proxy in Cloud Foundry Foundation allows an unauthenticated remote attacker to read all logs and metrics for every application and platform component by minting a JWT accepted as a valid logs.admin token.
Risk Assessment
An attacker can access sensitive operational and monitoring data of the entire platform, compromising confidentiality and potentially enabling further attacks.
Recommendation
Upgrade log-cache_release to version 3.2.7 or later and CF Deployment to a version containing the fix.
Other vulnerabilities in Cloud Foundry
See all- CVE-2026-59386Medium
A SpaceSupporter could improperly modify an application's start command and buildpack—actions requiring SpaceDeveloper privileges. This privilege escalation enables unauthorized retrieval of service credentials through malicious start commands or custom buildpacks.
- CVE-2026-59385Low
A user with SpaceDeveloper privileges could modify the URL of a space-scoped broker without altering its credentials, enabling extraction of existing broker credentials by redirecting them to a broker under their control. The CF API does not permit direct reading of broker credentials, making this an indirect extraction method.
Original NVD description (English source)
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)
Vulnerability data from NVD (NIST) · CISA KEV · EPSS