coder vulnerability

Coder 2.3.1 before 2.14.4, 2.15.x before 2.15.3, and 2.16.0 before 2.16.1 contains an open redirect vulnerability in the login page because the redirect query parameter is improperly sanitized. Attackers can craft a Coder login URL that, when clicked by a logged-in user, redirects the victim to an attacker-controlled website for phishing.

Published 17 Oct 2026Updated 17 Oct 20263 sources
CVSS 5.3

What happened

Coder 2.3.1 before 2.14.4, 2.15.x before 2.15.3, and 2.16.0 before 2.16.1 contains an open redirect vulnerability in the login page because the redirect query parameter is improperly sanitized. Attackers can craft a Coder login URL that, when clicked by a logged-in user, redirects the victim to an attacker-controlled website for phishing.

Affected versions

coder: 2.16.0 through before 2.16.1 (semver); 2.15.0 through before 2.15.3 (semver); 2.3.1 through before 2.14.4 (semver) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.