GHSA-C57F-MM3J-27Q9 Astro: Cache Poisoning due to incorrect error handling when if-match header is malformed

Summary Requesting a static JS/CSS resource from the astro path with an incorrect or malformed if-match header returns a 500 error with a one-year cache lifetime instead of 412 in some cases. As a result, all subsequent requests to that file — regardless of the if-match header — will be served a...