Improper input validation in Tlsfuzzer Python-ecdsa
CVE-2026-33936
The `ecdsa` PyPI package is a pure Python implementation of ECC (Elliptic Curve Cryptography) with support for ECDSA (Elliptic Curve Digital Signature Algorithm), EdDSA (Edwards-curve Digital Signature Algorithm) and ECDH (Elliptic Curve D…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.000 (14.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Tlsfuzzer Python-ecdsa — versions < 0.19.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/tlsfuzzer/python-ecdsa/security/advisories/GHSA-9f5j-8jwj-x28g (x_refsource_CONFIRM)
- https://github.com/tlsfuzzer/python-ecdsa/commit/bd66899550d7185939bf27b75713a2ac9325a9d3 (x_refsource_MISC)
- https://github.com/tlsfuzzer/python-ecdsa/releases/tag/python-ecdsa-0.19.2 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-33936?
- CVE-2026-33936 is a medium-severity vulnerability in Tlsfuzzer Python-ecdsa, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-03-27.
- How severe is CVE-2026-33936?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2026-33936 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.