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CVE-2026-0864

Configuration Injection via Carriage Return (\r) in write() method

Published: 6/23/2026 Last updated: 8/13/2026 Reserved: 1/12/2026

When using the "configparser" module to write configuration files containing multi-line text values with carriage return characters (\r) the resulting file could be injected with unexpected keys and values if the attacker controls the written value.

CNA assigner: PSF (28c92f92-d60d-412d-b760-e73465c3df22) Requested by: n/a

Metrics

Version Score Severity Vector String
4.0 4.1 Medium CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Opam packages affected (7)

conf-python-2-7 conf-python-2-7-dev conf-python-3 conf-python-3-7 conf-python-3-dev py termbox

Products affected (0)

No product listed.

References (10)

Credits (3)