Vulnerability · Published Apr 3, 2023 · Assigned by snyk
CVE-2023-26112
Low 3.7
In plain English
A low-severity regular-expression denial of service in configobj. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.7Low
Exploit odds (30 days)1.3%top 30.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | configobj | no fix listed | DEBIAN-CVE-2023-26112 |
| Debian:13 | configobj | 5.0.8-2 | DEBIAN-CVE-2023-26112 |
| Debian:14 | configobj | 5.0.8-2 | DEBIAN-CVE-2023-26112 |
| PyPI | configobj | 5.0.9 | GHSA-c33w-24p9-8m24 |
| PyPI | configobj | 5.0.9 | PYSEC-2026-1270 |
| Ubuntu:22.04:LTS | configobj | 5.0.6-5ubuntu0.1 | USN-7040-1 |
| Ubuntu:22.04:LTS | configobj | 5.0.6-5ubuntu0.1 | UBUNTU-CVE-2023-26112 |
Affected products (as reported)
Weakness: CWE-1333 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P
References
- https://security.snyk.io/vuln/SNYK-PYTHON-CONFIGOBJ-3252494
- https://github.com/DiffSK/configobj/issues/232
- 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/6BO4RLMYEJODCNUE3DJIIUUFVTPAG6VN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PYU4IHVLOTYMFPH7KDOJGKZQR4GKWPFK/