CVE-2026-0865

Publication date 20 January 2026

Last updated 5 February 2026

Ubuntu priority

Medium

Why this priority?

Description

User-controlled header names and values containing newlines can allow injecting HTTP headers.

Status

Package Ubuntu Release Status
python2.7 25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy
Needs evaluation
20.04 LTS focal
Needs evaluation
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty
Needs evaluation
python3.4 25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
14.04 LTS trusty
Fixed 3.4.3-1ubuntu1~14.04.7+esm19
python3.5 25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
16.04 LTS xenial
Fixed 3.5.2-2ubuntu0~16.04.13+esm21
14.04 LTS trusty
Fixed 3.5.2-2ubuntu0~16.04.4~14.04.1+esm9
python3.6 25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
18.04 LTS bionic
Fixed 3.6.9-1~18.04ubuntu1.13+esm8
python3.7 25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
18.04 LTS bionic
Fixed 3.7.5-2ubuntu1~18.04.2+esm9
python3.8 25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed 3.8.10-0ubuntu1~20.04.18+esm5
18.04 LTS bionic
Fixed 3.8.0-3ubuntu1~18.04.2+esm9
python3.9 25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed 3.9.5-3ubuntu0~20.04.1+esm9
python3.10 25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy
Fixed 3.10.12-1~22.04.14
python3.11 25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy
Fixed 3.11.0~rc1-1~22.04.1~esm8
python3.12 25.10 questing Not in release
24.04 LTS noble
Fixed 3.12.3-1ubuntu0.11
22.04 LTS jammy Not in release
python3.13 25.10 questing
Fixed 3.13.7-1ubuntu0.3
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
python3.14 25.10 questing
Fixed 3.14.0-1ubuntu0.2
24.04 LTS noble Not in release
22.04 LTS jammy Not in release

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References

Related Ubuntu Security Notices (USN)

    • USN-8018-1
    • Python vulnerabilities
    • 5 February 2026

Other references