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VulnerabilityPublished Updated

CVE-2026-40964: Cloud Foundry Foundation log-cache_release · Improper Authentication

Affects Cloud Foundry Foundation log-cache_releaseSource CVE Database V5

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Not known to be exploited · CVSS 7.5 High · patch available : patch Cloud Foundry Foundation log-cache_release soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Cloud Foundry Foundationlog-cache_releaseAffected
  • >=2.7.0 <=3.2.6
Fixed in–
Cloud Foundry FoundationCF DeploymentAffected
  • >=12.44.0 <=55.2.0
Fixed in–

AI-suggested

A fix is available in log-cache_release version 3.2.7 and CF Deployment version 55.x.0 or later, which includes the patched log-cache_release. Users should upgrade to these versions or later to remediate the vulnerability. Patch status is not explicitly confirmed by a vendor advisory in the provided data; therefore, verify with the Cloud Foundry Foundation's official advisories for the latest remediation guidance.

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)

References

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