CVE-2026-44948Network attack vector

ImageScan denial of service via unchecked repository paths

Published Jun 30, 2026 · Updated Jun 30, 2026

Path traversal in the ImageScan subsystem of SUSE Rancher Fleet allows remote authenticated users to interrupt ImageScan service. The Fleet controller resolves gitrepo.Spec.Paths entries without checking that each result stays inside the temporary clone, so ScreeningLocalReader recursively walks external directories while holding a global ImageScan mutex. Attack requires RBAC permission to create or modify GitRepo resources; v0.15 deployments are exposed only when imagescan.enabled is true, while v0.12 through v0.14 register the controller unconditionally.

CVSS severity5.3
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in the ImageScan subsystem of SUSE Rancher Fleet allows remote authenticated users to interrupt ImageScan service. The Fleet controller resolves gitrepo.Spec.Paths entries without checking that each result stays inside the temporary clone, so ScreeningLocalReader recursively walks external directories while holding a global ImageScan mutex. Attack requires RBAC permission to create or modify GitRepo resources; v0.15 deployments are exposed only when imagescan.enabled is true, while v0.12 through v0.14 register the controller unconditionally.

The record

CVE
CVE-2026-44948
Published
Jun 30, 2026
Updated
Jun 30, 2026
Vendor
NeuVector
Product
Rancher
Classifications
CWE-23, CAPEC-126, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.12.0 <0.12.16
  2. Affected versionversion=0.13.0 <0.13.12
  3. Affected versionversion=0.14.0 <0.14.7
  4. Affected versionversion=0.15.0 <0.15.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NeuVector · Rancherversion=0.12.0 <0.12.16; version=0.13.0 <0.13.12; version=0.14.0 <0.14.7; version=0.15.0 <0.15.3

Published CVSS scores

4.3GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
5.3SUSECVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-23Relative Path Traversal
CAPEC-126Path Traversal
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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