description: The `fetch()` API and navigation incorrectly shared the same cache, as the cache key did not include the optional headers `fetch()` may contain.  Under the correct circumstances, an attacker may have been able to poison the local browser cache by priming it with a `fetch()` response controlled by the additional headers. Upon navigation to the same URL, the user would see the cached response instead of the expected response. This vulnerability affects Firefox < 123.
problem types: fetch could be used to effect cache poisoning
affected:
{
product: Firefox
vendor: Mozilla
versions:
lessThan: 123, status: affected, version: unspecified, versionType: custom
}