GHSA-M42H-3232-VPV3 nltk: Arbitrary File Read via Path Traversal in nltk.data.load() through Percent-Encoded Sequences

Summary nltk.data.load and nltk.data.find resolve user-supplied resource names to filesystem paths using url2pathname, which decodes percent-encoded sequences e.g. %2e%2e to ... Path safety checks are performed on the raw, still-encoded string before decoding occurs. An attacker supplying %2e%2e...