What’s Vulnerable › Vulnerabilities
CVE-2019-3803: Concourse includes token in CLI authentication callback
- Severity: high (CVSS 7.5 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2019-01-12 · updated 2026-06-17
- Weakness: CWE-200
Description
Pivotal Concourse, all versions prior to 4.2.2, puts the user access token in a url during the login flow. A remote attacker who gains access to a user's browser history could obtain the access token and use it to authenticate as the user.
Affected products
- Pivotal Concourse: before 4.2.2 — fixed in 4.2.2
How to fix
Upgrade to a fixed version: Pivotal Concourse 4.2.2. Check the vendor advisory for mitigations.
References
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