CVE-2026-112300DiffSK configobj __init__.py _sectionmarker redos
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)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
- Weakness (CWE)
- CWE-1333, CWE-400
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Oct 20, 2026
- First seen by InfoSec Signals
- Oct 19, 2026
Affected products
DiffSK configobj diffsk:configobj | 5.0.0; 5.0.1; 5.0.2; 5.0.3; 5.0.4; 5.0.5; 5.0.6; 5.0.7; and 2 more ranges | CNA record |
References
- https://vuldb.com/vuln/422346vdb-entry, technical-description
- https://vuldb.com/vuln/422346/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-112300third-party-advisory
- https://vuldb.com/submit/989395third-party-advisory
- https://github.com/DiffSK/configobj/issues/281issue-tracking
- https://github.com/DiffSK/configobj/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.