CVE-2026-15308 @ mufasa

"CVE-2026-15308"
"python-2.7.5-94.0.5.el7_9.tuxcare.els1"
"python-augeas-0.5.0-2.el7"
"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"
"Am I vulnerable?"

Status

accepted_risk

Priority

7.0

Match score

4.0

Risk

DoS Remote

CVSS

7.5 HIGH

Reason

cpe: python; pkgs: python, python-augeas, python-babel, python-backports, python-backports-ssl_match_hostname, python-chardet; version: in-range: python-2.7.5-94.0.5.el7_9.tuxcare.els1, python-augeas-0.5.0-2.el7, 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; risk:dos

Created

2026-08-02T19:35:36Z

Updated

2026-08-22T10:15:33Z

Closed

2026-08-04T19:00:34Z

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-augeas-0.5.0-2.el7
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

Inventory lookup

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

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

System	Matches	Ticket for CVE-2026-15308
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)	accepted_risk 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)	accepted_risk 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-2026-3644	7.5	Archive, Library, Matrix, Saiph, morris …	accepted_risk, does_not_affect	python-chardet	—
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	linked here
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.

Other CVEs related to this one as primary:

Related CVE	Note	Tickets
CVE-2026-7210	same product as CVE-2026-15308	morris, mufasa, Library, Matrix, Archive, Saiph

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
morris	accepted_risk	7.0	2026-08-22T10:15:33Z	Open
Library	accepted_risk	1.75	2026-08-22T10:15:33Z	Open
Matrix	accepted_risk	1.75	2026-08-22T10:15:33Z	Open
Archive	accepted_risk	0.62	2026-08-22T10:15:33Z	Open
Saiph	accepted_risk	0.62	2026-08-22T10:15:33Z	Open

Description

The incremental HTML parser (html.parser.HTMLParser) allows for CPU
denial-of-service through repeated unterminated markup declarations when
processing uncontrolled data.

Determination

CPU denial-of-service
Vulnerable Python present: Yes (2.7 + several 3.x)
Application code using html.parser on untrusted input: No evidence found
Overall practical risk: Low

Update status

Add note only

Mitigation log

2026-08-02T20:06:59Z — affects

CPU denial-of-service

2026-08-02T20:07:41Z

TuxCare did backport a fix for this CVE to the system Python 2.7 package on EL7 (python-2.7.5-...tuxcare.els12). However, you are using the separate alt-python27 packages (CloudLinux Alternative Python 2.7.18). There is no evidence that these packages have received the corresponding security update for CVE-2026-15308.

2026-08-02T20:08:25Z

Recommendation: Check if a newer alt-python27 package is available from CloudLinux/cPanel repositories. If not, consider whether any applications still require this old Python 2.7 runtime, as it is long past end-of-life.

2026-08-04T19:00:34Z — accepted_risk

Vulnerable Python present: Yes (2.7 + several 3.x) Application code using html.parser on untrusted input: No evidence found Overall practical risk: Low

References

NVD: CVE-2026-15308