CVE-2023-26112: All versions of the package configobj are vulnerable to Regular Expression Denial of Service (ReDoS) via the v

This week

LOW 3.7REMOTEMITIGATE

CVE-2023-26112 is a low-severity flaw (CVSS 3.7) affecting configobj. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	3.7 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-1333
Published	2023-04-03
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: configobj project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-04-03 05:15 UTCPublished CVE record published
2026-06-17 05:42 UTCUpdated Record last modified

configobj project configobj MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy configobj || rpm -q configobj || configobj --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-26112?

configobj: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-26112 being exploited?

CVE-2023-26112 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-26112 affect?

CVE-2023-26112 affects configobj. Severity is low (CVSS 3.7). 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

How urgent is CVE-2023-26112?

Priority 40/100. Public exploit reference; Remotely exploitable, no login, no user action

References

← Back to latest CVEs