CVE-2024-42475
OAuth library for nim allows insecure generation of state values by generateState - entropy too low and uses regular PRNG instead of CSPRNG
In the OAuth library for nim prior to version 0.11, the state values generated by the generateState function do not have sufficient entropy. These can be successfully guessed by an attacker allowing them to perform a CSRF vs a user, associating the user's session with the attacker's protected resources. While state isn't exactly a cryptographic value, it should be generated in a cryptographically secure way. generateState should be using a CSPRNG. Version 0.11 modifies the generateState function to generate state values of at least 128 bits of entropy while using a CSPRNG.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
OAuth library for nim allows insecure generation of state values by generateState - entropy too low and uses regular PRNG instead of CSPRNG
In the OAuth library for nim prior to version 0.11, the state values generated by the generateState function do not have sufficient entropy. These can be successfully guessed by an attacker allowing them to perform a CSRF vs a user, associating the user's session with the attacker's protected resources. While state isn't exactly a cryptographic value, it should be generated in a cryptographically secure way. generateState should be using a CSPRNG. Version 0.11 modifies the generateState function to generate state values of at least 128 bits of entropy while using a CSPRNG.
- Record
CVE-2024-42475- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-330, CWE-352
- Updated
- 2026-11-02
EUVDEUVD-2024-39635
In the OAuth library for nim prior to version 0.11, the state values generated by the generateState function do not have sufficient entropy. These can be successfully guessed by an attacker allowing them to perform a CSRF vs a user, associating the user's session with the attacker's protected resources. While state isn't exactly a cryptographic value, it should be generated in a cryptographically secure way. generateState should be using a CSPRNG. Version 0.11 modifies the generateState function to generate state values of at least 128 bits of entropy while using a CSPRNG.
- Record
EUVD-2024-39635- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
NVD
In the OAuth library for nim prior to version 0.11, the state values generated by the generateState function do not have sufficient entropy. These can be successfully guessed by an attacker allowing them to perform a CSRF vs a user, associating the user's session with the attacker's protected resources. While state isn't exactly a cryptographic value, it should be generated in a cryptographically secure way. generateState should be using a CSPRNG. Version 0.11 modifies the generateState function to generate state values of at least 128 bits of entropy while using a CSPRNG.
- Record
CVE-2024-42475- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-330, CWE-352
- Updated
- 2026-11-02
OSV
OAuth library for nim allows insecure generation of state values by generateState - entropy too low and uses regular PRNG instead of CSPRNG
In the OAuth library for nim prior to version 0.11, the state values generated by the generateState function do not have sufficient entropy. These can be successfully guessed by an attacker allowing them to perform a CSRF vs a user, associating the user's session with the attacker's protected resources. While state isn't exactly a cryptographic value, it should be generated in a cryptographically secure way. generateState should be using a CSPRNG. Version 0.11 modifies the generateState function to generate state values of at least 128 bits of entropy while using a CSPRNG.
- Record
CVE-2024-42475- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-330, CWE-352
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-42475 is a medium vulnerability (CVSS 6.5) in Cordea Oauth, published August 15, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. No source names a fixed version.