Lemur 0.1.4 does not use sufficient entropy in its IV when encrypting AES in CBC mode.
Priority LOW 36CWE-331Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
Lemur 0.1.4 does not use sufficient entropy in its IV when encrypting AES in CBC mode.
Why it matters now
EPSS 0.01511 74th percentileScored 2026-11-07
Fix Fixed lemur (PyPI): 0.1.5
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | lemur (PyPI) | before 0.1.5 | 0.1.5 | Patch available | GHSA-chg9-3c3p-ch23 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- lemur (PyPI) Vendor— Affected before 0.1.5 Fixed in 0.1.5 Patch available GHSA-chg9-3c3p-ch23
Remediation
- Fix · GHSA-chg9-3c3p-ch23 lemur (PyPI) Fixed in 0.1.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2015-7764
- 2026-10-03 Alias added: GHSA-chg9-3c3p-ch23
References
Advisory 4
More Netflix Lemur vulnerabilities
- TI-2023-14607 Insecure Random Generation in Netflix Lemur CVSS 3.1HIGH 7.5
Sources
- CVE-2015-7764 · CVE Program
- CVE-2015-7764 · NVD
- FIRST EPSS
- GHSA-chg9-3c3p-ch23 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences