CVE-2019-19588
Uncontrolled resource consumption in validators Python package
The validators package 0.12.2 through 0.12.5 for Python enters an infinite loop when validators.domain is called with a crafted domain string. This is fixed in 0.12.6.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
The validators package 0.12.2 through 0.12.5 for Python enters an infinite loop when validators.domain is called with a crafted domain string. This is fixed in 0.12.6.
- Record
CVE-2019-19588- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-835
- Updated
- 2026-11-02
CVE List No score
The validators package 0.12.2 through 0.12.5 for Python enters an infinite loop when validators.domain is called with a crafted domain string. This is fixed in 0.12.6.
- Record
CVE-2019-19588- Updated
- 2026-11-02
EUVDEUVD-2019-0154 No score
The validators package 0.12.2 through 0.12.5 for Python enters an infinite loop when validators.domain is called with a crafted domain string. This is fixed in 0.12.6.
- Record
EUVD-2019-0154- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5qcg-w2cc-xffw
Uncontrolled resource consumption in validators Python package
The validators package 0.12.2 through 0.12.5 for Python enters an infinite loop when validators.domain is called with a crafted domain string. This is fixed in 0.12.6.
- Record
GHSA-5qcg-w2cc-xffw- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-835
- Updated
- 2026-11-02
OSV
The validators package 0.12.2 through 0.12.5 for Python enters an infinite loop when validators.domain is called with a crafted domain string. This is fixed in 0.12.6.
- Record
CVE-2019-19588- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-5qcg-w2cc-xffw
Uncontrolled resource consumption in validators Python package
The validators package 0.12.2 through 0.12.5 for Python enters an infinite loop when validators.domain is called with a crafted domain string. This is fixed in 0.12.6.
- Record
GHSA-5qcg-w2cc-xffw- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-835
- Updated
- 2026-11-02
Show 4 moreShow less
OSVopenSUSE-SU-2024:11278-1 No score
python36-validators-0.18.1-2.4 on GA media
These are all security issues fixed in the python36-validators-0.18.1-2.4 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:11278-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:13811-1 No score
python310-validators-0.24.0-1.2 on GA media
These are all security issues fixed in the python310-validators-0.24.0-1.2 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:13811-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:12046-1 No score
python313-validators-0.35.0-1.4 on GA media
These are all security issues fixed in the python313-validators-0.35.0-1.4 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:12046-1- Updated
- 2026-11-02
OSVPYSEC-2019-134 No score
The validators package 0.12.2 through 0.12.5 for Python enters an infinite loop when validators.domain is called with a crafted domain string. This is fixed in 0.12.6.
- Record
PYSEC-2019-134- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
validatorsPyPI |
0.12.2 up to 0.12.6 | 0.12.6 |
validatorsPyPI |
0.12.2 up to 0.12.6, plus listed versions 0.12.30.12.40.12.5 |
0.12.6 |
python-validatorsopenSUSE:Tumbleweed |
before 0.24.0-1.2 | 0.24.0-1.2 |
python-validatorsopenSUSE:Tumbleweed |
before 0.35.0-1.4 | 0.35.0-1.4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-19588 is a high vulnerability (CVSS 7.5) in Validators Project Validators, published December 5, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.47%, the 73rd percentile. Fixed in validators 0.12.6.
References
github.com/kvesteri/validators/issues/86
nvd.nist.gov/vuln/detail/CVE-2019-19588
suse.com/security/cve/CVE-2019-19588