CVE-2025-12084

MEDIUM

5.3

CVSS v3

Description

When building nested elements using xml.dom.minidom methods such as appendChild() that have a dependency on _clear_id_cache() the algorithm is quadratic. Availability can be impacted when building excessively nested documents.

CWE-407

How to fix

Remediation Available

platform-pythonRocky

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

Fixed in:0:3.6.8-51.el8_8.12RHSA-2026:2330

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

Fixed in:0:3.6.8-39.el8_4.8RHSA-2026:1558

Fixed in:0:3.6.8-51.el8_8.12RHSA-2026:2330

Fixed in:0:3.6.8-39.el8_4.8RHSA-2026:1558

platform-pythonRed Hat / RHEL

Fixed in:0:3.6.8-39.el8_4.8RHSA-2026:1558

Fixed in:0:3.6.8-51.el8_8.12RHSA-2026:2330

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

Fixed in:0:3.6.8-24.el8_2.5RHSA-2026:1620

Fixed in:0:3.6.8-39.el8_4.8RHSA-2026:1558

Fixed in:0:3.6.8-51.el8_8.12RHSA-2026:2330

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

platform-python-debugRed Hat / RHEL

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

Fixed in:0:3.6.8-51.el8_8.12RHSA-2026:2330

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

Fixed in:0:3.6.8-24.el8_2.5RHSA-2026:1620

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

Fixed in:0:3.6.8-24.el8_2.5RHSA-2026:1620

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

platform-python-debugRocky

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

Fixed in:0:3.6.8-51.el8_8.12RHSA-2026:2330

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

platform-python-develRed Hat / RHEL

Fixed in:0:3.6.8-51.el8_8.12RHSA-2026:2330

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

Fixed in:0:3.6.8-39.el8_4.8RHSA-2026:1558

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

platform-python-develRocky

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

Fixed in:0:3.6.8-39.el8_4.8RHSA-2026:1558

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

Fixed in:0:3.6.8-24.el8_2.5RHSA-2026:1620

pythonRocky

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

pythonRed Hat / RHEL

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

python-debugRocky

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

python-debugRed Hat / RHEL

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

python-debuginfoRed Hat / RHEL

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.s390RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppcRHSA-2026:1537

python-debuginfoRocky

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.s390RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppcRHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

python-develRocky

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

python-develRed Hat / RHEL

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

python-libsRed Hat / RHEL

Fixed in:0:2.7.5-94.el7_9.2.s390RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppcRHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

python-libsRocky

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppcRHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.s390RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

python-testRocky

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

python-testRed Hat / RHEL

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

python-toolsRocky

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

python-toolsRed Hat / RHEL

Fixed in:0:2.7.5-94.el7_9.2.ppc64RHSA-2026:1537

Fixed in:0:2.7.5-94.el7_9.2RHSA-2026:1537

python-unversioned-commandRocky

Fixed in:0:3.12.12-3.el10_1RHSA-2026:1828

Fixed in:0:3.12.9-2.el10_0.6RHSA-2026:2233

Fixed in:0:3.9.10-4.el9_0.8RHSA-2026:2393

Fixed in:0:3.9.18-3.el9_4.10RHSA-2026:2276

Fixed in:0:3.9.16-1.el9_2.11RHSA-2026:2392

Fixed in:0:3.9.25-3.el9_7RHSA-2026:1478

Fixed in:0:3.9.21-2.el9_6.3RHSA-2026:2275

python-unversioned-commandRed Hat / RHEL

Fixed in:0:3.12.9-2.el10_0.6RHSA-2026:2233

Fixed in:0:3.12.12-3.el10_1RHSA-2026:1828

Fixed in:0:3.9.10-4.el9_0.8RHSA-2026:2393

Fixed in:0:3.9.25-3.el9_7RHSA-2026:1478

Fixed in:0:3.9.18-3.el9_4.10RHSA-2026:2276

Fixed in:0:3.9.21-2.el9_6.3RHSA-2026:2275

Fixed in:0:3.9.16-1.el9_2.11RHSA-2026:2392

python3Red Hat / RHEL

Fixed in:0:3.12.12-3.el10_1RHSA-2026:1828

Fixed in:0:3.12.9-2.el10_0.6RHSA-2026:2233

Fixed in:0:3.12.12-3.el10_1RHSA-2026:1828

python3Rocky

Fixed in:0:3.12.12-3.el10_1RHSA-2026:1828

Fixed in:0:3.12.9-2.el10_0.6RHSA-2026:2233

Fixed in:0:3.12.12-3.el10_1RHSA-2026:1828

Fixed in:0:3.12.9-2.el10_0.6RHSA-2026:2233

python3-debugRed Hat / RHEL

Fixed in:0:3.12.9-2.el10_0.6RHSA-2026:2233

Fixed in:0:3.12.12-3.el10_1RHSA-2026:1828

Fixed in:0:3.12.9-2.el10_0.6RHSA-2026:2233

Fixed in:0:3.12.12-3.el10_1RHSA-2026:1828

Fixed in:0:3.12.9-2.el10_0.6RHSA-2026:2233

Fixed in:0:3.12.12-3.el10_1RHSA-2026:1828

python3-debugRocky

Fixed in:0:3.12.9-2.el10_0.6RHSA-2026:2233

Fixed in:0:3.12.12-3.el10_1RHSA-2026:1828

Fixed in:0:3.12.9-2.el10_0.6RHSA-2026:2233

Fixed in:0:3.12.12-3.el10_1RHSA-2026:1828

Fixed in:0:3.12.9-2.el10_0.6RHSA-2026:2233

Fixed in:0:3.12.12-3.el10_1RHSA-2026:1828

python3-debuginfoRed Hat / RHEL

Fixed in:0:3.6.8-21.el7_9.3.ppc64RHSA-2026:2713

Fixed in:0:3.6.8-21.el7_9.3.s390RHSA-2026:2713

Fixed in:0:3.6.8-21.el7_9.3RHSA-2026:2713

Fixed in:0:3.6.8-21.el7_9.3.ppcRHSA-2026:2713

Fixed in:0:3.6.8-21.el7_9.3RHSA-2026:2713

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

python3-debuginfoRocky

Fixed in:0:3.6.8-21.el7_9.3RHSA-2026:2713

Fixed in:0:3.6.8-21.el7_9.3.ppcRHSA-2026:2713

Fixed in:0:3.6.8-21.el7_9.3RHSA-2026:2713

Fixed in:0:3.6.8-21.el7_9.3.s390RHSA-2026:2713

Fixed in:0:3.6.8-21.el7_9.3.ppc64RHSA-2026:2713

Fixed in:0:3.6.8-21.el7_9.3RHSA-2026:2713

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

python3-debugsourceRed Hat / RHEL

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

Fixed in:0:3.6.8-39.el8_4.8RHSA-2026:1558

Fixed in:0:3.6.8-24.el8_2.5RHSA-2026:1620

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

Fixed in:0:3.6.8-72.el8_10RHSA-2026:1631

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

python3-debugsourceRocky

Fixed in:0:3.6.8-39.el8_4.8RHSA-2026:1558

Fixed in:0:3.6.8-24.el8_2.5RHSA-2026:1620

Fixed in:0:3.6.8-39.el8_4.8RHSA-2026:1558

Fixed in:0:3.6.8-47.el8_6.10RHSA-2026:2391

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

0.78%probability of exploitation in 30 days

53rdpercentile

Moderate risk: more likely to be exploited than 53% of all known CVEs.

References

Patch5

Other references9

Related Vulnerabilities

Other CWE-407 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-27223	Medium	5.2	78%	-	Fix
CVE-2022-36021	Medium	5.5	60%	-	Fix
CVE-2021-33582	High	7.5	3.1%	-	Fix
CVE-2024-43485	High	7.5	3.1%	-	Fix
CVE-2024-43484	High	7.5	2.9%	-	Fix
CVE-2016-10396	High	7.5	2.9%	-	-

Common questions

How do I fix CVE-2025-12084?

Published advisories record a fix for 128 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2025-12084 being actively exploited?

Not that we know of. CVE-2025-12084 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.78% is the estimated probability that it will be exploited in the next 30 days. That is higher than 53% of all scored CVEs.

How severe is CVE-2025-12084?

CVE-2025-12084 has a CVSS v3 base score of 5.3, rated moderate. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2025-12084 affect?

Published advisories record a fix for platform-python (Rocky), platform-python (Red Hat / RHEL), platform-python-debug (Red Hat / RHEL), platform-python-debug (Rocky), and 124 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2025-12084

Markdown

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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 2026-01-26.