CVSS 4.0
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, без вход и без действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in potatosalad jose (erlang-jose) allows a remote attacker to exhaust a node's memory with a small crafted JWE token. The jose_jwe_zip:uncompress/2 function in src/jwe/jose_jwe_zip.erl decompresses the DEFLATE-compressed plaintext of a JWE that carries the optional zip: DEF header by calling zlib:inflate/2 on the entire attacker-controlled stream, with no bound on the output size or the inflation ratio. Raw DEFLATE reaches ratios around 1000:1 on highly repetitive input, so a few-kilobyte token inflates to hundreds of megabytes or gigabytes in a single call. Decompression runs automatically during decryption through jose_jwe:block_decrypt/2 (JOSE.JWE.block_decrypt/2 in Elixir), before the recipient can inspect or reject the payload. With the common asymmetric key-management algorithms (RSA-OAEP, ECDH-ES) an attacker needs only the recipient's public key to craft such a token, so no authentication or secret material is required. A single small token can exhaust the node's memory and crash the BEAM, denying service to all users. This issue affects jose: from 1.0.0 before 1.11.13.
Засегнати продукти
- potatosalad jose: 1.0.0 преди 1.11.13
- potatosalad jose: a7746ecd4950f85a393136e449a91dac62b5c429 преди 857eb8e7f2d33e2c9ca2189e77226561cacaf2ad
Вид слабост
История
- 26 октомври 2026 Публикувано
Други уязвимости в potatosalad jose
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-65627
- https://nvd.nist.gov/vuln/detail/CVE-2026-65627
- https://github.com/potatosalad/erlang-jose/security/advisories/GHSA-wfpv-qxp8-x5gm
- https://cna.erlef.org/cves/CVE-2026-65627.html
- https://osv.dev/vulnerability/EEF-CVE-2026-65627
- https://github.com/potatosalad/erlang-jose/commit/a7746ecd4950f85a393136e449a91dac62b5c429
- https://github.com/potatosalad/erlang-jose/commit/857eb8e7f2d33e2c9ca2189e77226561cacaf2ad