Cloud Foundry Stratos Deploys With Public Default Session Store Secret

published 2019-03-07 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-13414

cvss: 8.7; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

Cloud Foundry Stratos, versions prior to 2.3.0, deploys with a public default session store secret. A malicious user with default session store secret can brute force another user's current Stratos session, and act on behalf of that user.

Patch / fix

fixed in 1

Cloud Foundry Stratos 2.3.0

Exploit prediction

0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	8.7	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:P/I:N/A:N

Affected products

Cloud Foundry Stratos

Classification

Weakness

CWE-384 Session Fixation
CWE-1188 Initialization of a Resource with an Insecure Default

References

cloudfoundry.org /blog/cve-2019-3783
vendor-advisory

Sources

CVE List CVE-2019-3783
NVD CVE-2019-3783

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary