Advisory Database
  • Advisories
  • Dependency Scanning
  1. pypi
  2. ›
  3. py
  4. ›
  5. CVE-2020-29651

CVE-2020-29651: py vulnerable to Regular Expression Denial of Service

April 20, 2021 (updated November 4, 2025)

A denial of service via regular expression in the py.path.svnwc component of py (aka python-py) through 1.9.0 could be used by attackers to cause a compute-time denial of service attack by supplying malicious input to the blame functionality.

References

  • github.com/advisories/GHSA-hj5v-574p-mj7c
  • github.com/pypa/advisory-database/tree/main/vulns/py/PYSEC-2020-92.yaml
  • github.com/pytest-dev/py
  • github.com/pytest-dev/py/issues/256
  • github.com/pytest-dev/py/pull/257
  • github.com/pytest-dev/py/pull/257/commits/4a9017dc6199d2a564b6e4b0aa39d6d8870e4144
  • lists.debian.org/debian-lts-announce/2024/11/msg00024.html
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AYWNYEV3FGDHPIHX4DDUDMFZ6NLCQRC4
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHDTINIBJZ67T3W74QTBIY5LPKAXEOGR
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AYWNYEV3FGDHPIHX4DDUDMFZ6NLCQRC4
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CHDTINIBJZ67T3W74QTBIY5LPKAXEOGR
  • nvd.nist.gov/vuln/detail/CVE-2020-29651
  • www.oracle.com/security-alerts/cpujul2022.html

Code Behaviors & Features

Detect and mitigate CVE-2020-29651 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 1.10.0

Fixed versions

  • 1.10.0

Solution

Upgrade to version 1.10.0 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-400: Uncontrolled Resource Consumption

Source file

pypi/py/CVE-2020-29651.yml

Spotted a mistake? Edit the file on GitLab.

  • Site Repo
  • About GitLab
  • Terms
  • Privacy Statement
  • Contact

Page generated Sun, 08 Nov 2026 00:16:41 +0000.