CVE & CISA-KEV Catalog

CVE-2025-11468

UNSCORED
NVD

Description

When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized.

CWE-93

How to fix

Remediation Available
python3Rocky
Fixed in:11-main@x86_64RHSA-2026:8822
Fixed in:11-main@aarch64RHSA-2026:8822
Fixed in:12-main@x86_64RHSA-2026:8824
Fixed in:12-main@srcRHSA-2026:8824
Fixed in:12-main@aarch64RHSA-2026:8824
Fixed in:11-main@srcRHSA-2026:8822
python3Red Hat / RHEL
Fixed in:11-main@x86_64RHSA-2026:8822
Fixed in:11-main@srcRHSA-2026:8822
Fixed in:11-main@aarch64RHSA-2026:8822
Fixed in:12-main@x86_64RHSA-2026:8824
Fixed in:12-main@srcRHSA-2026:8824
Fixed in:12-main@aarch64RHSA-2026:8824
libpython3.10Ubuntu
Fixed in:3.10.12-1~22.04.14USN-8018-1
libpython3.11Ubuntu
Fixed in:3.11.0~rc1-1~22.04.1~esm8USN-8018-1
libpython3.12t64Ubuntu
Fixed in:3.12.3-1ubuntu0.11USN-8018-1
libpython3.13Ubuntu
Fixed in:3.13.7-1ubuntu0.3USN-8018-1
libpython3.14Ubuntu
Fixed in:3.14.0-1ubuntu0.2USN-8018-1
libpython3.4Ubuntu
Fixed in:3.4.3-1ubuntu1~14.04.7+esm19USN-8018-1
libpython3.5Ubuntu
Fixed in:3.5.2-2ubuntu0~16.04.4~14.04.1+esm9USN-8018-1
Fixed in:3.5.2-2ubuntu0~16.04.13+esm21USN-8018-1
libpython3.6Ubuntu
Fixed in:3.6.9-1~18.04ubuntu1.13+esm8USN-8018-1
libpython3.7Ubuntu
Fixed in:3.7.5-2ubuntu1~18.04.2+esm9USN-8018-1
libpython3.8Ubuntu
Fixed in:3.8.0-3ubuntu1~18.04.2+esm9USN-8018-1
Fixed in:3.8.10-0ubuntu1~20.04.18+esm5USN-8018-1
libpython3.9Ubuntu
Fixed in:3.9.5-3ubuntu0~20.04.1+esm9USN-8018-1
python3.10Ubuntu
Fixed in:3.10.12-1~22.04.14USN-8018-1
python3.11Ubuntu
Fixed in:3.11.0~rc1-1~22.04.1~esm8USN-8018-1
python3.12Ubuntu
Fixed in:3.12.3-1ubuntu0.11USN-8018-1
python3.13Ubuntu
Fixed in:3.13.7-1ubuntu0.3USN-8018-1
python3.14Ubuntu
Fixed in:3.14.0-1ubuntu0.2USN-8018-1
python3.4Ubuntu
Fixed in:3.4.3-1ubuntu1~14.04.7+esm19USN-8018-1
python3.5Ubuntu
Fixed in:3.5.2-2ubuntu0~16.04.4~14.04.1+esm9USN-8018-1
Fixed in:3.5.2-2ubuntu0~16.04.13+esm21USN-8018-1
python3.6Ubuntu
Fixed in:3.6.9-1~18.04ubuntu1.13+esm8USN-8018-1
python3.7Ubuntu
Fixed in:3.7.5-2ubuntu1~18.04.2+esm9USN-8018-1
python3.8Ubuntu
Fixed in:3.8.0-3ubuntu1~18.04.2+esm9USN-8018-1
Fixed in:3.8.10-0ubuntu1~20.04.18+esm5USN-8018-1
python3.9Ubuntu
Fixed in:3.9.5-3ubuntu0~20.04.1+esm9USN-8018-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.55%probability of exploitation in 30 days
42ndpercentile

Moderate risk: more likely to be exploited than 42% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-03.