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Fencer Vulns
critical 9.8

CVE-2021-40323 in the critical feed json

Cobbler before 3.3.0 allows log poisoning

published 2021-10-04 5 y ago modified 2026-09-10 1 mo ago also GHSA-cpqf-3c3r-c9g2 , PYSEC-2021-373 , EUVD-2021-0044

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
86.8%
EPSS 86.8% chance of exploitation in 30 days, percentile 99.7%
public exploits
0
none known, plus a Nuclei check

Summary

Cobbler before 3.3.0 allows log poisoning, and resultant Remote Code Execution, via an XMLRPC method that logs to the logfile for template injection.

Patch / fix

  • pypi cobbler 3.3.0
  • cobbler Ubuntu Pro 16.04 LTS 2.4.1-0ubuntu2+esm1

ubuntu advisories UBUNTU-CVE-2021-40323

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • cobbler Manager Server Module 4.2 3.1.2-5.8.1
  • spacecmd Manager Server Module 4.2 4.2.12-4.6.2
  • susemanager Manager Server Module 4.2 4.2.22-3.6.1
  • spacewalk-web Manager Server Module 4.2 4.2.21-3.6.3
  • spacewalk-java Manager Server Module 4.2 4.2.28-3.11.5
  • openvpn-formula Manager Server Module 4.2 0.1.2-3.3.1
  • spacewalk-setup Manager Server Module 4.2 4.2.8-3.6.1
  • spacewalk-utils Manager Server Module 4.2 4.2.13-3.6.1

suse advisories SUSE-SU-2021:3170-1SUSE-RU-2021:3162-1SUSE-SU-2021:3151-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-40323 updated cvss 9.1

cobbler: Arbitrary File Disclosure/Template Injection via generate_script RPC method

  • Red Hat Enterprise Linux 8 koan, python3-koan
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

86.83% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi cobbler
<3.3.0
3.3.0

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.