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fix(security): escape compose path and validate custom compose command

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- composePath / appName are now passed through shell-quote in createCommand,
  getCreateEnvFileCommand and services/compose.ts deploy commands, instead of
  being interpolated raw into 'docker compose'/'docker stack' shell commands.
- compose.command: sanitizeCommand was cosmetic (trim + strip quotes). It now
  rejects shell control characters (; & | ` $ () {} <> newline), which a normal
  docker compose CLI line never contains, blocking breakout into host commands.

Closes GHSA-8r5w-vqjr-8c44, GHSA-5xv2-7f8w-9j5c, GHSA-qh6h-669j-77rw
This commit is contained in:
Mauricio Siu
2026-07-19 23:06:53 -06:00
parent 8539a5c82f
commit d48037a802
3 changed files with 121 additions and 5 deletions
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19
packages/server/src/utils/builders/compose.ts
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@@ -67,9 +67,20 @@ Compose Type: ${composeType} ✅`;
return bashCommand;
};
// Shell control characters that must never appear in a user-provided compose
// command: they would let it break out of the `docker ${command}` invocation
// into arbitrary host commands. A normal docker compose CLI line never needs them.
const UNSAFE_COMPOSE_COMMAND = /[;&|`$(){}<>\n\\]/;
const sanitizeCommand = (command: string) => {
const sanitizedCommand = command.trim();
if (UNSAFE_COMPOSE_COMMAND.test(sanitizedCommand)) {
throw new Error(
"Invalid characters in compose command: shell control characters are not allowed",
);
}
const parts = sanitizedCommand.split(/\s+/);
const restCommand = parts.map((arg) => arg.replace(/^"(.*)"$/, "$1"));
@@ -88,9 +99,9 @@ export const createCommand = (compose: ComposeNested) => {
let command = "";
if (composeType === "docker-compose") {
command = `compose -p ${appName} -f ${path} up -d --build --remove-orphans`;
command = `compose -p ${quote([appName])} -f ${quote([path])} up -d --build --remove-orphans`;
} else if (composeType === "stack") {
command = `stack deploy -c ${path} ${appName} --prune --with-registry-auth`;
command = `stack deploy -c ${quote([path])} ${quote([appName])} --prune --with-registry-auth`;
}
return command;
@@ -124,8 +135,8 @@ export const getCreateEnvFileCommand = (compose: ComposeNested) => {
const encodedContent = encodeBase64(envFileContent);
return `
touch ${envFilePath};
echo "${encodedContent}" | base64 -d > "${envFilePath}";
touch ${quote([envFilePath])};
echo "${encodedContent}" | base64 -d > ${quote([envFilePath])};
`;
};