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Unscored USN-8344-1 0 CVEs

python-pip vulnerabilities

Published May 28, 2026 · Updated May 29, 2026

Summary

It was discovered that pip incorrectly handled TLS certificate
verification in session connections. If a session was first used with
certificate verification disabled, subsequent requests to the same host
would also skip verification regardless of the session's current settings.
A remote attacker could possibly use this issue to perform a machine-in-the-middle
attack and expose sensitive information. (CVE-2024-35195)

It was discovered that pip's bundled urllib3 library did not limit the
number of decompression steps when processing HTTP responses. A remote
attacker could possibly use this issue to cause pip to consume excessive resources,
leading to a denial of service. (CVE-2025-66418)

It was discovered that pip's bundled urllib3 library improperly
handled streaming decompression of highly compressed data. A remote
attacker could possibly use this issue to cause pip to consume excessive resources,
leading to a denial of service. (CVE-2025-66471)

Fixed packages 3

ReleasePackageFixed in
Ubuntu · Pro 22.04 LTS Pro:22.04:LTS python-pip 22.0.2+dfsg-1ubuntu0.7+esm1
Ubuntu · Pro 24.04 LTS Pro:24.04:LTS python-pip 24.0+dfsg-1ubuntu1.3+esm1
Ubuntu · Pro 26.04 LTS Pro:26.04:LTS python-pip 25.1.1+dfsg-1ubuntu2+esm1

References

  • report
    https://ubuntu.com/security/CVE-2024-35195
  • report
    https://ubuntu.com/security/CVE-2025-66418
  • report
    https://ubuntu.com/security/CVE-2025-66471