CVE-2016-6636· NVD / CVE Program· CNA dell

The OAuth authorization implementation in Pivotal Cloud Foundry (PCF) before 242; UAA 2.x before 2.7.4.7, 3.x before 3.3.0.5, and 3.4.x befo

The OAuth authorization implementation in Pivotal Cloud Foundry (PCF) before 242; UAA 2.x before 2.7.4.7, 3.x before 3.3.0.5, and 3.4.x before 3.4.4; UAA BOSH before 11.5 and 12.x before 12.5; Elastic Runtime before 1.6.40, 1.7.x before 1.7.21, and 1.8.x before 1.8.1; and Ops Manager 1.7.x before 1.7.13 and 1.8.x before 1.8.1 mishandles redirect_uri subdomains, which allows remote attackers to obtain implicit access tokens via a modified subdomain.

MediumCVSS 5.3 · v3.0—No exploit No fix recorded

Published: Sep 29, 2016
Updated: Jun 16, 2026
EPSS: 1.4% · 71th percentile
CWE: CWE-601

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Action score

Monitor

Low priority for now.

CVSS: 21 / 40 · 5.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.4%

Affected systems

Vendor	Product	CPE
cloudfoundry	cloud foundry uaa bosh	cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh
pivotal software	cloud foundry	cpe:2.3:a:pivotal_software:cloud_foundry
pivotal software	cloud foundry elastic runtime	cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime
pivotal software	cloud foundry ops manager	cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager
pivotal software	cloud foundry uaa	cpe:2.3:a:pivotal_software:cloud_foundry_uaa

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

cloudfoundry cloud foundry uaa boshup to 12.3 inclusive
pivotal software cloud foundryup to 241 inclusive
pivotal software cloud foundry elastic runtime1.6.0
pivotal software cloud foundry elastic runtime1.6.1
pivotal software cloud foundry elastic runtime1.6.10
pivotal software cloud foundry elastic runtime1.6.11
pivotal software cloud foundry elastic runtime1.6.12
pivotal software cloud foundry elastic runtime1.6.13
pivotal software cloud foundry elastic runtime1.6.14
pivotal software cloud foundry elastic runtime1.6.15
pivotal software cloud foundry elastic runtime1.6.17
pivotal software cloud foundry elastic runtime1.6.18
pivotal software cloud foundry elastic runtime1.6.19
pivotal software cloud foundry elastic runtime1.6.2
pivotal software cloud foundry elastic runtime1.6.20
pivotal software cloud foundry elastic runtime1.6.21
pivotal software cloud foundry elastic runtime1.6.22
pivotal software cloud foundry elastic runtime1.6.23
pivotal software cloud foundry elastic runtime1.6.25
pivotal software cloud foundry elastic runtime1.6.26

Same product

cloudfoundry: all records

Other highest-scoring records for the same primary product.

CVE-2016-6637Multiple cross-site request forgery (CSRF) vulnerabilities in Pivotal Cloud Foundry (PCF) before 242; UAA 2.x before 2.7.4.7, 3.x before 3.3
38Monitor
CVE-2016-4468SQL injection vulnerability in Pivotal Cloud Foundry (PCF) before 238; UAA 2.x before 2.7.4.4, 3.x before 3.3.0.2, and 3.4.x before 3.4.1; U
36Monitor
CVE-2016-6651The UAA /oauth/token endpoint in Pivotal Cloud Foundry (PCF) before 243; UAA 2.x before 2.7.4.8, 3.x before 3.3.0.6, and 3.4.x before 3.4.5;
36Monitor
CVE-2017-4973An issue was discovered in Cloud Foundry Foundation cf-release versions prior to v257; UAA release 2.x versions prior to v2.7.4.14, 3.6.x ve
35Monitor
CVE-2016-3084The UAA reset password flow in Cloud Foundry release v236 and earlier versions, UAA release v3.3.0 and earlier versions, all versions of Log
32Monitor
CVE-2016-6659Cloud Foundry before 248; UAA 2.x before 2.7.4.12, 3.x before 3.6.5, and 3.7.x through 3.9.x before 3.9.3; and UAA bosh release (aka uaa-rel
32Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: low · data can be read
Integrity: none
Availability: none

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: Low
Integrity impact: None
Availability impact: None

Weakness class (CWE)

CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

Cross-Site FlashingCAPEC-178likelihood: Medium · Medium

ATT&CK techniques

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Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records