CVE-2018-15798

Pivotal Concourse allows malicious redirect urls on login

HIGH
7.6
CVSS Score
Published: December 19, 2018 at 10:00 PM UTC
Updated: June 17, 2026 at 01:43 AM UTC
1 product affected across 1 vendorConcourse

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Severity
HIGH7.6
Exploit prediction
EPSS 1%

Description

Pivotal Concourse Release, versions 4.x prior to 4.2.2, login flow allows redirects to untrusted websites. A remote unauthenticated attacker could convince a user to click on a link using the oAuth redirect link with an untrusted website and gain access to that user's access token in Concourse.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.0.0 ≤ v < 4.2.24.x ≤ v < 4.2.24.x
Affected range stops below 4.2.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMRelease NotesVendor Advisory
https://pivotal.io/security/cve-2018-15798

CVSS

7.6HIGHdell
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-601

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