Vladimir Dzhuvinov

5 exploits Active since Aug 2017
CVE-2025-53864 WRITEUP MEDIUM WRITEUP
Connect2id Nimbus JOSE + JWT <10.0.2-9.37.4 - DoS
Connect2id Nimbus JOSE + JWT 10.0.x before 10.0.2 and 9.37.x before 9.37.4 allows a remote attacker to cause a denial of service via a deeply nested JSON object supplied in a JWT claim set, because of uncontrolled recursion. NOTE: this is independent of the Gson 2.11.0 issue because the Connect2id product could have checked the JSON object nesting depth, regardless of what limits (if any) were imposed by Gson.
CVSS 5.8
CVE-2017-12972 WRITEUP HIGH WRITEUP
nimbus_jose+jwt - HMAC Bypass via Integer Overflow in Byte-to-Bit Conversion
In Nimbus JOSE+JWT before 4.39, there is no integer-overflow check when converting length values from bytes to bits, which allows attackers to conduct HMAC bypass attacks by shifting Additional Authenticated Data (AAD) and ciphertext so that different plaintext is obtained for the same HMAC.
CVSS 7.5
CVE-2017-12973 WRITEUP LOW WRITEUP
Nimbus JOSE+JWT <4.39 - Info Disclosure
Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack.
CVSS 3.1
CVE-2017-12974 WRITEUP HIGH WRITEUP
Nimbus JOSE+JWT < 4.36 - Invalid Curve Attack via ECKey Construction
Nimbus JOSE+JWT before 4.36 proceeds with ECKey construction without ensuring that the public x and y coordinates are on the specified curve, which allows attackers to conduct an Invalid Curve Attack in environments where the JCE provider lacks the applicable curve validation.
CVSS 7.5
CVE-2023-52428 WRITEUP HIGH WRITEUP
Connect2id Nimbus JOSE+JWT < 9.37.2 - Denial of Service via Large JWE p2c Header Value
In Connect2id Nimbus JOSE+JWT before 9.37.2, an attacker can cause a denial of service (resource consumption) via a large JWE p2c header value (aka iteration count) for the PasswordBasedDecrypter (PBKDF2) component.
CVSS 7.5