CVE-2023-26112

python-configobj: Regular expression denial of service exists in ./src/configobj/validate.py

Published Apr 3, 2023 CVSS 3.1 · 3.7 Low EPSS 1.3% KEV · Not listed

Description

All versions of the package configobj are vulnerable to Regular Expression Denial of Service (ReDoS) via the validate function, using (.+?)\((.*)\).

**Note:** This is only exploitable in the case of a developer, putting the offending value in a server side configuration file.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

configobj

affected

Version	Status	Constraints
`0`	affected	< *

Configuration 1 [-]

cpe:2.3:a:configobj_project:configobj:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2023-1260	All versions of the package configobj are vulnerable to Regular Expression Denial of Service (ReDoS) via the validate function, using (.+?)\((.)\). Note:* This is only exploitable in the case of a developer, putting the offending value in a server side configuration file.
Github GHSA	GHSA-c33w-24p9-8m24	configobj ReDoS exploitable by developer using values in a server-side configuration file
Ubuntu USN	USN-7040-1	ConfigObj vulnerability
Ubuntu USN	USN-7040-2	ConfigObj vulnerability

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: 1.3% (1.269% probability within 30 days)

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/DiffSK/configobj/issues/232
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6BO4RLMYEJODCNUE3DJIIUUFVTPAG6VN/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NZHY7B33EFY4LESP2NI4APQUPRROTAZK/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PYU4IHVLOTYMFPH7KDOJGKZQR4GKWPFK/
https://nvd.nist.gov/vuln/detail/CVE-2023-26112
https://security.snyk.io/vuln/SNYK-PYTHON-CONFIGOBJ-3252494
https://www.cve.org/CVERecord?id=CVE-2023-26112

History

Feb 13, 2025 8:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Feb 13, 2025 5:00 PM Description updated View changes

Type	Values Removed	Values Added
Description	All versions of the package configobj are vulnerable to Regular Expression Denial of Service (ReDoS) via the validate function, using (.+?)\((.)\). Note:* This is only exploitable in the case of a developer, putting the offending value in a server side configuration file.	All versions of the package configobj are vulnerable to Regular Expression Denial of Service (ReDoS) via the validate function, using (.+?)\((.)\). Note:* This is only exploitable in the case of a developer, putting the offending value in a server side configuration file.