CVE-2023-48051 json
upydev has weak encryption padding
published 2023-11-20 2 y ago modified 2026-06-17 4 mo ago also GHSA-qc4j-hrj6-cppf , PYSEC-2023-302 , EUVD-2023-0302
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
An issue in /upydev/keygen.py in upydev v0.4.3 allows attackers to decrypt sensitive information via weak encryption padding.
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/Carglglz/upydev/issues/38 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | upydev | <=0.4.3 |
no fix listed |
Classification
- Weakness
-
- CWE-326 Inadequate Encryption Strength
References
-
github.com
/Carglglz/upydev/issues/38
web, exploit, issue-tracking, mitigation, report
-
nvd.nist.gov
/vuln/detail/CVE-2023-48051
advisory
-
github.com
/Carglglz/upydev
package
-
github.com
/pypa/advisory-database/tree/main/vulns/upydev/PYSEC-2023-302.yaml
web
Sources
- CVE List CVE-2023-48051
- GitHub Advisory GHSA-qc4j-hrj6-cppf
- NVD CVE-2023-48051
- OSV PYSEC-2023-302
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.