The following code is flagged as dead (since it's *replacing* rather than updating the existing Object):
https://github.com/mozilla/pdf.js/blob/4483cba72410027acf46630ebf252ae529704476/src/core/xfa/template.js#L2336-L2339
according to the alert in https://github.com/mozilla/pdf.js/security/code-scanning/103?query=ref%3Arefs%2Fheads%2Fmaster

Looking at the surrounding code, I can see a couple of possibilities here:
 1. This is indeed just dead code, which should be removed.
 2. The code should be moved up, and placed just *above* the previous block instead.
 3. There should be other, more invasive, changes made to this code...

/cc @calixteman Which solution is correct here?
Assuming it's either option 1 or 2, I can submit a patch to fix this.
if (this.startAngle === 0 && this.sweepAngle === 360) {
      arc = {
        name: "ellipse",
        attributes: {
          xmlns: SVG_NS,
          cx: "50%",
          cy: "50%",
          rx: "50%",
          ry: "50%",
          style,
        },
      };
    } else {
      const startAngle = (this.startAngle * Math.PI) / 180;
      const sweepAngle = (this.sweepAngle * Math.PI) / 180;
      const largeArc = this.sweepAngle - this.startAngle > 180 ? 1 : 0;
      const [x1, y1, x2, y2] = [
        50 * (1 + Math.cos(startAngle)),
        50 * (1 - Math.sin(startAngle)),
        50 * (1 + Math.cos(sweepAngle)),
        50 * (1 - Math.sin(sweepAngle)),
      ];
      arc = {
        name: "path",
        attributes: {
          xmlns: SVG_NS,
          d: `M ${x1} ${y1} A 50 50 0 ${largeArc} 0 ${x2} ${y2}`,
          vectorEffect: "non-scaling-stroke",
          style,
        },