CVE-2026-53941Network attack vectorHinoki check available

Container-startup denial of service via crafted loader cache

Published Sep 15, 2026 · Updated Sep 15, 2026

Denial of service in Inspektor Gadget 0.27.0 through 0.53.0 allows remote attackers to delay container startup via a crafted cache. The uprobe library resolver trusts the cache entry count, overflows a uint32 length calculation, and builds strings byte by byte, causing excessive iteration and quadratic CPU work. An unprivileged container needs control of its /etc/ld.so.cache while a uprobe-based gadget is active; the fanotify pause then blocks other container starts for about a minute without affecting confidentiality or integrity.

CVSS severity6.9
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in Inspektor Gadget 0.27.0 through 0.53.0 allows remote attackers to delay container startup via a crafted cache. The uprobe library resolver trusts the cache entry count, overflows a uint32 length calculation, and builds strings byte by byte, causing excessive iteration and quadratic CPU work. An unprivileged container needs control of its /etc/ld.so.cache while a uprobe-based gadget is active; the fanotify pause then blocks other container starts for about a minute without affecting confidentiality or integrity.

The record

CVE
CVE-2026-53941
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
Inspektor Gadget
Product
Inspektor Gadget
Classifications
CWE-770, CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=>= 0.27.0, < 0.53.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Inspektor Gadget · Inspektor Gadgetversion=>= 0.27.0, < 0.53.1

Published CVSS scores

6.9GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CWE-400Uncontrolled Resource Consumption
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo