How severe is CVE-2017-8034?

CVE-2017-8034 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-8034 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8034?

CVE-2017-8034 primarily affects Cloudfoundry Capi-release. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-8034?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-8034 published?

CVE-2017-8034 was published on 2017-07-17 and last updated on 2026-06-17.

CVE-2017-8034

CVE-2017-8034 is a medium-severity vulnerability in Cloudfoundry Capi-release with a CVSS 3.x base score of 6.6. 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-565.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
CVSS v2: 6.0
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-565
Affected product: Cloudfoundry Capi-release
Published: 2017-07-17
Last modified: 2026-06-17

Description

The Cloud Controller and Router in Cloud Foundry (CAPI-release capi versions prior to v1.32.0, Routing-release versions prior to v0.159.0, CF-release versions prior to v267) do not validate the issuer on JSON Web Tokens (JWTs) from UAA. With certain multi-zone UAA configurations, zone administrators are able to escalate their privileges.

Frequently asked questions

What is CVE-2017-8034?: The Cloud Controller and Router in Cloud Foundry (CAPI-release capi versions prior to v1.32.0, Routing-release versions prior to v0.159.0, CF-release versions prior to v267) do not validate the issuer on JSON Web Tokens (JWTs) from UAA. With certain multi-zone UAA configurations, zone administrators are able to escalate their privileges.
How severe is CVE-2017-8034?: CVE-2017-8034 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-8034 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8034?: CVE-2017-8034 primarily affects Cloudfoundry Capi-release. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-8034?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-8034 published?: CVE-2017-8034 was published on 2017-07-17 and last updated on 2026-06-17.

References

https://www.cloudfoundry.org/cve-2017-8034/

Affected products (3)

cpe:2.3:a:cloudfoundry:capi-release:*:*:*:*:*:*:*:*
cpe:2.3:a:cloudfoundry:cf-release:*:*:*:*:*:*:*:*
cpe:2.3:a:cloudfoundry:routing-release:*:*:*:*:*:*:*:*

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