CVE-2026-49826CWE-601

CVE-2026-49826

published August 14, 2026

CVSS
0.0
EPSS
1%
Percentile
43.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
0.0 · NONE
CVSS v4.0
0.0 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00526 · 43.7th percentile
Weakness
CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
Published
2026-08-14T21:18Z
References (3)
https://github.com/concourse/concourse/commit/ac60be5f0435b6592f5a4fcc089050d72ad2452c · [email protected]https://github.com/concourse/concourse/releases/tag/v8.2.3 · [email protected]https://github.com/concourse/concourse/security/advisories/GHSA-8w27-c4vc-88q9 · [email protected]
EPSS history
Timeline
  • 14 AUG 16:25Z
    Concourse login flow has an open redirect issue
    cvelistv5