How severe is CVE-2019-3783?

CVE-2019-3783 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-3783 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-3783?

CVE-2019-3783 affects Cloudfoundry Stratos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-3783?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-3783 published?

CVE-2019-3783 was published on 2019-03-07 and last updated on 2026-06-17.

CVE-2019-3783

CVE-2019-3783 is a high-severity vulnerability in Cloudfoundry Stratos with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1188.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 4.0
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1188
Affected product: Cloudfoundry Stratos
Published: 2019-03-07
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2019-3783?: 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.
How severe is CVE-2019-3783?: CVE-2019-3783 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-3783 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-3783?: CVE-2019-3783 affects Cloudfoundry Stratos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-3783?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-3783 published?: CVE-2019-3783 was published on 2019-03-07 and last updated on 2026-06-17.

References

https://www.cloudfoundry.org/blog/cve-2019-3783

Affected products (1)

cpe:2.3:a:cloudfoundry:stratos:*:*:*:*:*:*:*:*

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