CVE-2019-5010An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6.
Updated under an hour ago ()
Does this affect you?
It affects python and 6 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted certificates to trigger this vulnerability.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-476
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Oct 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
python python python:python | from 2.7.0 before 2.7.16; from 3.4.0 before 3.4.10; from 3.5.0 before 3.5.7; from 3.6.0 before 3.6.9; from 3.7.0 before 3.7.3 | NVD |
opensuse leap opensuse:leap | 15.1 | NVD |
debian debian_linux debian:debian_linux | 9.0 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 8.0 | NVD |
redhat enterprise_linux_eus redhat:enterprise_linux_eus | 8.1; 8.2; 8.4; 8.6 | NVD |
redhat enterprise_linux_server_aus redhat:enterprise_linux_server_aus | 8.2; 8.4; 8.6 | NVD |
redhat enterprise_linux_server_tus redhat:enterprise_linux_server_tus | 8.2; 8.4; 8.6 | NVD |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.htmlmailing-list, third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:3520third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:3725third-party-advisory
- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2020/07/msg00011.htmlmailing-list, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00034.htmlmailing-list, third-party-advisory
- https://security.gentoo.org/glsa/202003-26third-party-advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0758exploit, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.