Back
CVE-2013-4347
The (1) make_nonce, (2) generate_nonce, and (3) generate_verifier functions in SimpleGeo python-oauth2 uses weak random numbers to…
Medium5.8EPSS 2.5%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The (1) make_nonce, (2) generate_nonce, and (3) generate_verifier functions in SimpleGeo python-oauth2 uses weak random numbers to generate nonces, which makes it easier for remote attackers to guess the nonce via a brute force attack.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
- EPSS (exploitation in 30 days)
- 2.5% · top 16% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.
Weakness
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIoauth2GHSA-rv8h-p43r-4x5r (opens in a new tab)
References (4)
- 62388 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://github.com/simplegeo/python-oauth2/issues/9 (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20130912 Re: cve requests for python-oauth2 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://github.com/simplegeo/python-oauth2/pull/146 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-rv8h-p43r-4x5r (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2013-4347)Record last updated .