A vulnerability was identified in DiffSK configobj up to 5.0.9. Affected by this vulnerability is the function _sectionmarker of the file configobj/__init__.py. The manipulation leads to inefficient regular expression complexity. Remote exploitation of the attack is possible. The project was informed of the problem early through an issue report but has not responded yet.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Diffsk Subscribe
Configobj Subscribe

No data.

No data.

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No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/DiffSK/configobj/ cve-icon cve-icon
https://github.com/DiffSK/configobj/issues/281 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-112300 cve-icon cve-icon
https://vuldb.com/submit/989395 cve-icon cve-icon
https://vuldb.com/vuln/422346 cve-icon cve-icon
https://vuldb.com/vuln/422346/cti cve-icon cve-icon
History

Mon, 19 Oct 2026 20:45:00 +0000

Type Values Removed Values Added
Description A vulnerability was identified in DiffSK configobj up to 5.0.9. Affected by this vulnerability is the function _sectionmarker of the file configobj/__init__.py. The manipulation leads to inefficient regular expression complexity. Remote exploitation of the attack is possible. The project was informed of the problem early through an issue report but has not responded yet.
Title DiffSK configobj __init__.py _sectionmarker redos
First Time appeared Diffsk
Diffsk configobj
Weaknesses CWE-1333
CWE-400
CPEs cpe:2.3:a:diffsk:configobj:*:*:*:*:*:*:*:*
Vendors & Products Diffsk
Diffsk configobj
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:ND/RC:C'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-10-19T20:30:18.020Z

Reserved: 2026-10-19T14:04:49.020Z

Link: CVE-2026-112300

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-19T21:17:06.677

Modified: 2026-10-19T21:17:06.677

Link: CVE-2026-112300

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-19T21:45:04Z

Weaknesses