Skip to content

Potential fix for code scanning alert no. 4: Server-side request forgery #6

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
arjunkomath merged 1 commit into from
Feb 9, 2026
Merged

Potential fix for code scanning alert no. 4: Server-side request forgery #6

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
19 changes: 19 additions & 0 deletions web/actions/projects.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,18 @@ import cronstrue from "cronstrue";
import { startMigration } from "./migrations";
import { inngest } from "@/lib/inngest/client";

function isValidImageReferencePart(reference: string): boolean {
// Allow only characters that are valid in Docker tags/digests and avoid path traversal.
// Tags: letters, digits, underscores, periods and dashes; Digests: "algorithm:hex".
// This regex is intentionally conservative.
const tagPattern = /^[A-Za-z0-9_][A-Za-z0-9_.-]{0,127}$/;
const digestPattern = /^[A-Za-z0-9_+.-]+:[0-9a-fA-F]{32,256}$/;

return reference === "latest" ||
tagPattern.test(reference) ||
digestPattern.test(reference);
}

function parseImageReference(image: string): {
registry: string;
namespace: string;
Expand Down Expand Up @@ -96,6 +108,13 @@ export async function validateDockerImage(
parseImageReference(image);
const reference = digest || tag || "latest";

if (!isValidImageReferencePart(reference)) {
return {
valid: false,
error: "Invalid image tag or digest",
};
}

if (registry === "docker.io") {
const repoPath =
namespace === "library" ? repository : `${namespace}/${repository}`;
Expand Down