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CVE-2018-1000226

48
FAUCET Score

CVE-2018-1000226 is a critical Incorrect Access Control vulnerability in the XMLRPC API of Cobbler versions 2.6.11+ (and potentially older), affecting both cobblerd and cobbler. This flaw allows unauthenticated attackers to bypass security token validation, leading to privilege escalation, data manipulation or exfiltration, and LDAP credential harvesting. With a CVSS score of 9.8 (Critical), it is easily exploitable over the network without user interaction. While not listed in KEV or having active social media discussion, a Nuclei template exists for an authentication bypass, indicating public exploit code availability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0.0CPE matchmatch criteria
cpe:2.3:a:cobblerd:cobbler:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
12.48%
Probability of exploitation in next 30 days
EPSS Percentile
95.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Nuclei: CVE-2018-1000226 · Feb 14, 2022
This CVE's current EPSS score of 0.1248 is in the 92nd percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

pippatch availablevia ghsa
Product: cobblerFixed in: 3.0.0
github_advisoryvendor investigatingvia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: cobbler
redhatend of lifevia redhat_api
Product: Red Hat Satellite 5Fixed in: cobbler

Vendor Advisories (2)

pipGHSA-f88q-22g8-frcgcritical

Cobbler Improper Validation of Security Tokens

May 13, 2022
redhatCVE-2018-1000226Important

cobbler: XMLRPC API endpoints are not correctly validating security tokens

Aug 2, 2018

References

github.com / cobbler/cobbler/issues/1916
Issue TrackingVendor Advisory
movermeyer.com / 2018-08-02-privilege-escalation-exploits-in-cobblers-api
Third Party Advisory