CVE-2026-3644 @ morris

"CVE-2026-3644"
"python-2.7.5-94.0.5.el7_9.tuxcare.els1"
"python-babel-0.9.6-8.el7"
"python-backports-1.0-8.el7"
"python-backports-ssl_match_hostname-3.5.0.1-1.el7"
"python-chardet-2.2.1-3.el7"
"python-cllib-1.2-2.17.el7.cloudlinux"
"Am I vulnerable?"

Status

does_not_affect

Priority

7.5

Match score

4.0

Risk

Other Remote priv:user

CVSS

7.5 HIGH

Reason

cpe: python; pkgs: python, python-babel, python-backports, python-backports-ssl_match_hostname, python-chardet, python-cllib; version: in-range: python-2.7.5-94.0.5.el7_9.tuxcare.els1, python-babel-0.9.6-8.el7, python-backports-1.0-8.el7, python-backports-ssl_match_hostname-3.5.0.1-1.el7, python-chardet-2.2.1-3.el7, python-cllib-1.2-2.17.el7.cloudlinux

Created

2026-08-05T14:05:15Z

Updated

2026-08-22T10:15:58Z

Closed

2026-08-05T14:30:13Z

Package interrogation (copy)

Run on the host — click to copy a command. RPM

Package	Commands
python-2.7.5-94.0.5.el7_9.tuxcare.els1
python-babel-0.9.6-8.el7
python-backports-1.0-8.el7
python-backports-ssl_match_hostname-3.5.0.1-1.el7
python-chardet-2.2.1-3.el7
python-cllib-1.2-2.17.el7.cloudlinux

Inventory lookup

Search package inventory across systems, then return here. Create a ticket on systems the matcher missed.

Suggestions: python · python-babel · python-backports · python-backports-ssl_match_hostname · python-chardet · python-cllib

System	Matches	Ticket for CVE-2026-3644
Archive	libpython-stdlib 2.7.16-1; libpython2-stdlib 2.7.16-1; libpython2.7 2.7.16-2+deb10u4; libpython2.7-minimal 2.7.16-2+deb10u4; libpython2.7-stdlib 2.7.16-2+deb10u4; libpython3-stdlib 3.7.3-1; libpython3.5-minimal 3.5.3-1+deb9u5; libpython3.7-minimal 3.7.3-2+deb10u7 (+28 more)	accepted_risk open
Library	dh-python 2.20170125; libpython-stdlib 2.7.13-2; libpython2.7 2.7.13-2+deb9u6; libpython2.7-minimal 2.7.13-2+deb9u6; libpython2.7-stdlib 2.7.13-2+deb9u6; libpython3-stdlib 3.5.3-1; libpython3.5 3.5.3-1+deb9u5; libpython3.5-minimal 3.5.3-1+deb9u5 (+21 more)	accepted_risk open
Matrix	libpython2.7-minimal 2.7.18-8+deb11u1; libpython2.7-stdlib 2.7.18-8+deb11u1; libpython3-stdlib 3.11.2-1+b1; libpython3.11 3.11.2-6+deb12u8; libpython3.11-minimal 3.11.2-6+deb12u8; libpython3.11-stdlib 3.11.2-6+deb12u8; python 2.7.16-1; python-apt-common 2.6.0 (+34 more)	accepted_risk open
Saiph	libpython-stdlib 2.7.16-1; libpython2-stdlib 2.7.16-1; libpython2.7 2.7.16-2+deb10u4; libpython2.7-minimal 2.7.16-2+deb10u4; libpython2.7-stdlib 2.7.16-2+deb10u4; libpython3-stdlib 3.7.3-1; libpython3.5-minimal 3.5.3-1+deb9u1; libpython3.7 3.7.3-2+deb10u7 (+23 more)	accepted_risk open
morris	alt-python-internal 3.11.13; alt-python-internal-libs 3.11.13; alt-python-internal-pip-wheel 21.3.1; alt-python-internal-setuptools-wheel 65.6.3; alt-python-virtualenv 20.13.0; alt-python27 2.7.18; alt-python27-alembic 0.8.3; alt-python27-argparse 1.2.1 (+341 more)	does_not_affect open
mufasa	abrt-addon-python 2.1.11; abrt-python 2.1.11; alt-python-internal 3.11.13; alt-python-internal-libs 3.11.13; alt-python-internal-pip-wheel 21.3.1; alt-python-internal-setuptools-wheel 65.6.3; alt-python-virtualenv 20.13.0; alt-python27 2.7.18 (+198 more)	does_not_affect open
Bullseye	libpython3-stdlib 3.9.2-3; libpython3.9 3.9.2-1+deb11u7; libpython3.9-minimal 3.9.2-1+deb11u7; libpython3.9-stdlib 3.9.2-1+deb11u7; python-apt-common 2.2.1.1; python3 3.9.2-3; python3-apt 2.2.1.1; python3-certifi 2020.6.20-1 (+30 more)	none
Helios	libpython3-stdlib 3.9.2-3; libpython3.9 3.9.2-1+deb11u7; libpython3.9-minimal 3.9.2-1+deb11u7; libpython3.9-stdlib 3.9.2-1+deb11u7; python-apt-common 2.2.1.1; python-is-python3 3.9.2-1; python3 3.9.2-3; python3-apt 2.2.1.1 (+29 more)	none
Janus	libpython2.7 2.7.16-2+deb10u4; libpython2.7-minimal 2.7.16-2+deb10u4; libpython2.7-stdlib 2.7.16-2+deb10u4; libpython3-stdlib 3.7.3-1; libpython3.7-minimal 3.7.3-2+deb10u7; libpython3.7-stdlib 3.7.3-2+deb10u7; python3 3.7.3-1; python3-minimal 3.7.3-1 (+2 more)	none
Silk	alt-python-internal 3.11.14-1; alt-python-internal-libs 3.11.14-1; alt-python-internal-pip-wheel 21.3.1-1; alt-python-internal-setuptools-wheel 65.6.3-1; alt-python311 3.11.9-1; alt-python311-libs 3.11.9-1; alt-python311-pip-wheel 21.3.1-1; alt-python311-setuptools-wheel 65.6.3-1 (+50 more)	none

Same product CVEs in your queue

Other tickets that look like the same product (from match reason). Relate them here to triage this CVE as the primary.

CVE	CVSS	Systems	Status	Matched	Already related
CVE-2026-68770	9.8	morris, mufasa	does_not_affect	python	—
CVE-2026-4224	7.5	Archive, Library, Saiph, morris, mufasa	accepted_risk, does_not_affect	python-chardet	—
CVE-2026-7210	7.5	Archive, Library, Matrix, Saiph, morris …	accepted_risk, not_applicable	python-chardet	→ CVE-2026-15308
CVE-2026-15308	7.5	Archive, Library, Matrix, Saiph, morris …	accepted_risk	python-chardet	—
CVE-2026-59939	7.5	Bullseye, Matrix, Silk	new	python	—
CVE-2026-30922	7.5	Library	not_applicable	python	→ CVE-2026-59884
CVE-2026-59886	7.5	Library	not_applicable	python	→ CVE-2026-59884
CVE-2026-7246	7.2	Silk	does_not_affect	python	—

Related CVE (same fix)

Point this ticket’s CVE at a higher-priority / same-fix primary so you only triage one.

Host OS / kernel

CloudLinux release 7.9 (Boris Yegorov) (7.9) · cloudlinux

Arch

x86_64

kernel_release

uname -r → 3.10.0-962.3.2.lve1.5.89.el7.x86_64

kernel_version

uname -v → #1 SMP Thu Jul 9 15:55:31 UTC 2026

For Linux kernel CVEs, kernel_version (Debian packaging / build string) often decides fixed vs not; kernel_release is used for upstream NVD range compares.

Same CVE on other hosts

Open the ticket for this CVE on another system.

System	Status	Priority	Updated
mufasa	does_not_affect	7.5	2026-08-22T10:15:58Z	Open
Library	accepted_risk	2.25	2026-08-22T10:15:58Z	Open
Matrix	accepted_risk	2.25	2026-08-22T10:15:58Z	Open
Archive	accepted_risk	1.12	2026-08-22T10:15:58Z	Open
Saiph	accepted_risk	1.12	2026-08-22T10:15:58Z	Open

Description

The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update(), |= operator, and unpickling paths were not patched, allowing control characters to bypass input validation. Additionally, BaseCookie.js_output() lacked the output validation applied to BaseCookie.output().

Determination

Already fixed in tuxcare package
rpm -q --changelog python | head -50
CVE-2026-3644: reject control characters in Morsel.update(), the unpickling
  path (Morsel.**setstate**) and Morsel.js_output().

Update status

Status

Note

Also apply to other systems with this CVE:

Select all

mufasa does_not_affect Library accepted_risk Matrix accepted_risk Archive accepted_risk Saiph accepted_risk

Add note only

Mitigation log

2026-08-05T14:30:13Z — does_not_affect

Already fixed in tuxcare package rpm -q --changelog python | head -50 CVE-2026-3644: reject control characters in Morsel.update(), the unpickling path (Morsel.**setstate**) and Morsel.js_output().

References

NVD: CVE-2026-3644