CVE-2026-39373: latchset jwcrypto, отказ на услуга

Описание

Оригинално описание

JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to 1.5.7, an unauthenticated attacker can exhaust server memory by sending crafted JWE tokens with ZIP compression. The existing patch for CVE-2024-28102 limits input token size to 250KB but does not validate the decompressed output size. An unauthenticated attacker can cause memory exhaustion on memory-constrained systems. A token under the 250KB input limit can decompress to approximately 100MB. This vulnerability is fixed in 1.5.7.

Засегнати продукти

• latchset jwcrypto: < 1.5.7

Вид слабост

• CWE-409 Неправилна обработка на силно компресирани данни (усилване на данни)

История

Други уязвимости в latchset jwcrypto

• 6.8CVE-2024-28102

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-39373
• https://nvd.nist.gov/vuln/detail/CVE-2026-39373
• https://github.com/latchset/jwcrypto/security/advisories/GHSA-fjrm-76x2-c4q4