CVE-2026-39373

CVE-2026-39373 affects JWCrypto (Python) prior to 1.5.7. An unauthenticated attacker can trigger memory exhaustion by sending crafted JWE tokens using ZIP compression; a token under 250 KB can decompress to ~100 MB. The fix is version 1.5.7. This follows CVE-2024-28102: while the 250 KB input lim...