Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, the CreateSubAgent RPC did not validate a requested app sharing level against the template's MaxPortSharingLevel before persisting workspace apps, letting a workspace owner exceed the administrator's configured maximum. Exploitation requires the ability to register sub-agent apps in a workspace the attacker controls. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2clamps the sub-agent app sharing level to the template's MaxPortSharingLevel. As a workaround, disable wildcard app hostnames (CODER_WILDCARD_ACCESS_URL) to block subdomain-based app routing.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55432.json",
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-862"
]
}{
"source": [
"CPE_RANGE",
"REFERENCES"
],
"cpe": "cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "2.29.17"
},
{
"introduced": "2.30.0"
},
{
"fixed": "2.32.7"
},
{
"introduced": "2.33.0"
},
{
"fixed": "2.33.8"
},
{
"introduced": "2.34.0"
},
{
"fixed": "2.34.2"
}
]
}