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CVE-2023-26112

21
FAUCET Score

CVE-2023-26112 describes a Regular Expression Denial of Service (ReDoS) vulnerability in all versions of the configobj package, specifically within its validate function. This flaw could be triggered by a malicious regular expression pattern, leading to a denial of service. The vulnerability carries a CVSS score of 5.9 (Medium), indicating a network-based attack with high impact on availability, but requiring high attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:configobj_project:configobj:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.7LOW

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.2
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.26%
Probability of exploitation in next 30 days
EPSS Percentile
66.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0126 is in the 34th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

pippatch availablevia ghsa
Product: configobjFixed in: 5.0.9
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: python-configobj
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: python-configobj
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Dev SpacesFixed in: devspaces-udi-container

Vendor Advisories (2)

pipGHSA-c33w-24p9-8m24low

configobj ReDoS exploitable by developer using values in a server-side configuration file

Apr 3, 2023
redhatCVE-2023-26112Moderate

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

Apr 3, 2023

References

github.com / DiffSK/configobj/issues/232
Issue Tracking
lists.fedoraproject.org / archives/list/[email protected]/message/6BO4RLMYEJODCNUE3DJIIUUFVTPAG6VN
lists.fedoraproject.org / archives/list/[email protected]/message/NZHY7B33EFY4LESP2NI4APQUPRROTAZK
lists.fedoraproject.org / archives/list/[email protected]/message/PYU4IHVLOTYMFPH7KDOJGKZQR4GKWPFK
security.snyk.io / vuln/SNYK-PYTHON-CONFIGOBJ-3252494
ExploitThird Party Advisory