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CVE-2022-31055

24
FAUCET Score

CVE-2022-31055 describes a critical access control bypass in kCTF, a Kubernetes-based CTF platform, affecting versions prior to 1.6.0. The vulnerability allowed traffic from any IP address due to a broken source IP range configuration. This vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity that could lead to high integrity impact, allowing unauthorized access to challenges. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.6.0CPE matchmatch criteria
cpe:2.3:a:google:kctf:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.59%
Probability of exploitation in next 30 days
EPSS Percentile
44.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0059 is in the 21st percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / google/kctf/commit/8cf050be974fcc2fd8aa136701f9a66f2b2a5202
PatchThird Party Advisory
github.com / google/kctf/pull/371
PatchThird Party Advisory
github.com / google/kctf/security/advisories/GHSA-4g2v-6qc6-6jv5
Third Party Advisory