CVE-2026-112300CWE-1333CWE-400denial-of-service

CVE-2026-112300

Medium · published October 20, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
33.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
6.9 · 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
EPSS
0.00405 · 33.6th percentile
Weaknesses
CWE-1333 · Inefficient Regular Expression Complexity; CWE-400 · Uncontrolled Resource Consumption
Published
2026-10-20T01:17Z
References (6)
https://github.com/DiffSK/configobj/ · [email protected]https://github.com/DiffSK/configobj/issues/281 · [email protected]https://vuldb.com/cve/CVE-2026-112300 · [email protected]https://vuldb.com/submit/989395 · [email protected]https://vuldb.com/vuln/422346 · [email protected]https://vuldb.com/vuln/422346/cti · [email protected]
EPSS history
Timeline
  • 21 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 19 OCT 20:30Z
    DiffSK configobj __init__.py _sectionmarker redos
    cvelistv5
  • 19 OCT 20:30Z
    DiffSK configobj __init__.py _sectionmarker redos
    cvelistv5