CVE-2026-63443 Coder - Broken Access Control

Coder < 2.29.19, 2.32.9, 2.33.10, and 2.34.4 contains a broken access control caused by improper handling of HTTP redirects in agentConn.apiClient(), letting authenticated users redirect requests to other agents to read/write files and execute commands across workspace boundaries, exploit requires authenticated user controlling a modified workspace agent and knowledge of victim agent UUID.

CVSS base score 8.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.76% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
File System Read, File System Write, Remote Code Execution, Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-863

Vendor fix

Update to versions 2.29.19, 2.32.9, 2.33.10, or 2.34.4 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs