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TI-2019-12065 Aliases CVE-2019-16056GHSA-8mcc-mjj5-h77m

An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9…

Priority MEDIUM 47CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 23 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0512 92nd percentileScored 2026-11-07
Fix Partial Red Hat: 7 advisoriesRed Hat: 23 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 20

CPEVersionsRoleVendor
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*up to 2.7.16; 3.0.0 – 3.0.1; 3.1.0 – 3.1.5; 3.2.0 – 3.2.6; 3.3.0 – 3.3.7; 3.4.0 – 3.4.10; 3.5.0 – 3.5.7; 3.6.0 – 3.6.9; 3.7.0 – 3.7.4Vulnerablepython-pillow
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*29VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*30VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*31VulnerableFedoraproject
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*12.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
  • cpe:2.3:a:python:python:*:*:*:*:*:*:*:* Versions up to 2.7.16; 3.0.0 – 3.0.1; 3.1.0 – 3.1.5; 3.2.0 – 3.2.6; 3.3.0 – 3.3.7; 3.4.0 – 3.4.10; 3.5.0 – 3.5.7; 3.6.0 – 3.6.9; 3.7.0 – 3.7.4 Vulnerable ·python-pillow
  • cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* Versions 29 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* Versions 12.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
Show 10 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*19.04VulnerableCanonical
cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:*1.0VulnerableRed Hat
cpe:2.3:a:oracle:communications_operations_monitor:*:*:*:*:*:*:*:*4.1 – 4.3VulnerableOracle
cpe:2.3:a:oracle:communications_operations_monitor:3.4:*:*:*:*:*:*:*3.4VulnerableOracle
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*8.57VulnerableOracle
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*8.58VulnerableOracle
cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*8.8VulnerableOracle
cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:*11VulnerableOracle
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*15.0VulnerableopenSUSE
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*15.1VulnerableopenSUSE
  • cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* Versions 19.04 Vulnerable ·Canonical
  • cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Red Hat
  • cpe:2.3:a:oracle:communications_operations_monitor:*:*:*:*:*:*:*:* Versions 4.1 – 4.3 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:communications_operations_monitor:3.4:*:*:*:*:*:*:* Versions 3.4 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:* Versions 8.57 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:* Versions 8.58 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* Versions 8.8 Vulnerable ·Oracle
  • cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:* Versions 11 Vulnerable ·Oracle
  • cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* Versions 15.0 Vulnerable ·openSUSE
  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE

Remediation

Red Hat 7 advisories

  • RHSA-2020:2520 Released 2020-06-12 · Red Hat rating Moderate
    python security update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) python-2.7.5-87.el7_7, python-devel-2.7.5-87.el7_7, python-libs-2.7.5-87.el7_7
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) python-debug-2.7.5-87.el7_7, python-test-2.7.5-87.el7_7, python-tools-2.7.5-87.el7_7 +1
    • Red Hat Enterprise Linux Server EUS (v. 7.7) python-2.7.5-87.el7_7, python-devel-2.7.5-87.el7_7, python-libs-2.7.5-87.el7_7 +1
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.7) python-debug-2.7.5-87.el7_7, python-test-2.7.5-87.el7_7, python-tools-2.7.5-87.el7_7 +1
  • RHSA-2020:1605 Released 2020-04-28 · Red Hat rating Moderate
    python27:2.7 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) Cython-0.28.1-7.module+el8.1.0+3111+de3f2d8e.src::python27:2.7, PyYAML-3.12-16.module+el8.1.0+3111+de3f2d8e.src::python27:2.7, babel-2.5.1-9.module+el8.1.0+3111+de3f2d8e.noarch::python27:2.7 +47
  • RHSA-2020:1764 Released 2020-04-28 · Red Hat rating Moderate
    python3 security and bug fix update
    • Red Hat Enterprise Linux AppStream (v. 8) platform-python-3.6.8-23.el8, platform-python-debug-3.6.8-23.el8, platform-python-devel-3.6.8-23.el8 +3
    • Red Hat Enterprise Linux BaseOS (v. 8) platform-python-3.6.8-23.el8, python3-3.6.8-23.el8, python3-libs-3.6.8-23.el8 +1
Show 4 more Red Hat advisories
  • RHSA-2020:1131 Released 2020-03-31 · Red Hat rating Moderate
    python security update
    • Red Hat Enterprise Linux Client (v. 7) python-2.7.5-88.el7, python-libs-2.7.5-88.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) python-debug-2.7.5-88.el7, python-devel-2.7.5-88.el7, python-test-2.7.5-88.el7 +2
    • Red Hat Enterprise Linux ComputeNode (v. 7) python-2.7.5-88.el7, python-devel-2.7.5-88.el7, python-libs-2.7.5-88.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-debug-2.7.5-88.el7, python-test-2.7.5-88.el7, python-tools-2.7.5-88.el7 +1
    • Red Hat Enterprise Linux Server (v. 7) python-2.7.5-88.el7, python-devel-2.7.5-88.el7, python-libs-2.7.5-88.el7 +1
    • Red Hat Enterprise Linux Server Optional (v. 7) python-debug-2.7.5-88.el7, python-test-2.7.5-88.el7, python-tools-2.7.5-88.el7 +1
    • Red Hat Enterprise Linux Workstation (v. 7) python-2.7.5-88.el7, python-devel-2.7.5-88.el7, python-libs-2.7.5-88.el7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) python-debug-2.7.5-88.el7, python-test-2.7.5-88.el7, python-tools-2.7.5-88.el7 +1
  • RHSA-2020:1132 Released 2020-03-31 · Red Hat rating Moderate
    python3 security update
    • Red Hat Enterprise Linux Client (v. 7) python3-3.6.8-13.el7, python3-libs-3.6.8-13.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) python3-3.6.8-13.el7, python3-debug-3.6.8-13.el7, python3-devel-3.6.8-13.el7 +3
    • Red Hat Enterprise Linux ComputeNode (v. 7) python3-3.6.8-13.el7, python3-libs-3.6.8-13.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) python3-3.6.8-13.el7, python3-debug-3.6.8-13.el7, python3-devel-3.6.8-13.el7 +3
    • Red Hat Enterprise Linux Server (v. 7) python3-3.6.8-13.el7, python3-libs-3.6.8-13.el7, python3-libs-3.6.8-13.el7.ppc
    • Red Hat Enterprise Linux Server Optional (v. 7) python3-3.6.8-13.el7, python3-3.6.8-13.el7.ppc, python3-debug-3.6.8-13.el7 +9
    • Red Hat Enterprise Linux Workstation (v. 7) python3-3.6.8-13.el7, python3-libs-3.6.8-13.el7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) python3-3.6.8-13.el7, python3-debug-3.6.8-13.el7, python3-devel-3.6.8-13.el7 +3
  • RHSA-2019:3948 Released 2019-11-25 · Red Hat rating Moderate
    python27-python security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) python27-python-2.7.17-2.el6, python27-python-debug-2.7.17-2.el6, python27-python-devel-2.7.17-2.el6 +4
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) python27-python-2.7.17-2.el7, python27-python-debug-2.7.17-2.el7, python27-python-devel-2.7.17-2.el7 +4
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) python27-python-2.7.17-2.el7, python27-python-debug-2.7.17-2.el7, python27-python-devel-2.7.17-2.el7 +4
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) python27-python-2.7.17-2.el7, python27-python-debug-2.7.17-2.el7, python27-python-devel-2.7.17-2.el7 +4
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) python27-python-2.7.17-2.el7, python27-python-debug-2.7.17-2.el7, python27-python-devel-2.7.17-2.el7 +4
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) python27-python-2.7.17-2.el6, python27-python-debug-2.7.17-2.el6, python27-python-devel-2.7.17-2.el6 +4
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) python27-python-2.7.17-2.el7, python27-python-debug-2.7.17-2.el7, python27-python-devel-2.7.17-2.el7 +4
  • RHSA-2019:3725 Released 2019-11-06 · Red Hat rating Moderate
    rh-python36-python security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-python36-python-3.6.9-2.el6, rh-python36-python-debug-3.6.9-2.el6, rh-python36-python-devel-3.6.9-2.el6 +4
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-python36-python-3.6.9-2.el7, rh-python36-python-debug-3.6.9-2.el7, rh-python36-python-devel-3.6.9-2.el7 +4
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) rh-python36-python-3.6.9-2.el7, rh-python36-python-debug-3.6.9-2.el7, rh-python36-python-devel-3.6.9-2.el7 +4
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-python36-python-3.6.9-2.el7, rh-python36-python-debug-3.6.9-2.el7, rh-python36-python-devel-3.6.9-2.el7 +4
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-python36-python-3.6.9-2.el7, rh-python36-python-debug-3.6.9-2.el7, rh-python36-python-devel-3.6.9-2.el7 +4
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-python36-python-3.6.9-2.el6, rh-python36-python-debug-3.6.9-2.el6, rh-python36-python-devel-3.6.9-2.el6 +4
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-python36-python-3.6.9-2.el7, rh-python36-python-debug-3.6.9-2.el7, rh-python36-python-devel-3.6.9-2.el7 +4

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Ansible Tower 3.5 for RHEL 7 ServerFixed—
Red Hat Ansible Tower 3.6 for RHEL 7Fixed—
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:1605, RHSA-2020:1764
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2020:1764
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:1131, RHSA-2020:1132
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:1131, RHSA-2020:1132
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:1131, RHSA-2020:1132
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7)Fixed RHSA-2020:2520
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:1131, RHSA-2020:1132
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7)Fixed RHSA-2020:2520
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:1131, RHSA-2020:1132
Red Hat Enterprise Linux Server EUS (v. 7.7)Fixed RHSA-2020:2520
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:1131, RHSA-2020:1132
Red Hat Enterprise Linux Server Optional EUS (v. 7.7)Fixed RHSA-2020:2520
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:1131, RHSA-2020:1132
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:1131, RHSA-2020:1132
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2019:3725, RHSA-2019:3948
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:3725, RHSA-2019:3948
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5)Fixed RHSA-2019:3725, RHSA-2019:3948
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2019:3725, RHSA-2019:3948
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7)Fixed RHSA-2019:3725, RHSA-2019:3948
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2019:3725, RHSA-2019:3948
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2019:3725, RHSA-2019:3948
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-16056
  2. 2026-10-03 Alias added: GHSA-8mcc-mjj5-h77m
  3. 2026-10-07 CVSS score added · CISA ADP
  4. 2026-10-07 Weakness changed · CISA ADP
  5. 2026-10-07 CISA SSVC decision points changed

References

Patch 3

Advisory 30

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences