CVE-2026-40964

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-01 · updated 2026-07-22
Weakness: CWE-287

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)

Affected products

Cloud Foundry Foundation CF Deployment: from 12.44.0 through 55.2.0
Cloud Foundry Foundation log-cache_release: from 2.7.0 through 3.2.6

References

https://www.cloudfoundry.org/blog/cve-2026-40964-read-access-to-cf-logs/

Get alerted when CVE-2026-40964 or the next vulnerability affects your stack