CVE-2026-49826 (GCVE-0-2026-49826)
Vulnerability from cvelistv5 – Published: 2026-08-14 16:25 – Updated: 2026-08-14 18:06
VLAI
EPSS
VEX
Title
Concourse login flow has an open redirect issue
Summary
Concourse is a container-based automation system written in Go. Prior to version 8.2.3, an attacker is able to craft and send a user a URL that will redirect the user from the Concourse web server to any other site. This could be used in a phishing attack to steal user's credentials. This has been fixed in 8.2.3. No known workarounds are available.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 17:41 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/concourse/concourse/security/a… | x_refsource_CONFIRM |
| https://github.com/concourse/concourse/commit/ac6… | x_refsource_MISC |
| https://github.com/concourse/concourse/releases/t… | x_refsource_MISC |
Impacted products
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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