CVE-2026-53941

MEDIUMPre-NVD 6.96.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 68% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
6.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.9Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Inspektor Gadget is a set of tools and framework for data collection and system inspection on Kubernetes clusters and Linux hosts using eBPF. From 0.27.0 until 0.53.1, the uprobe library resolver can allow an unprivileged container to consume excessive CPU and block other containers from starting by supplying a crafted /etc/ld.so.cache file while an uprobe-based gadget is active. The parser in pkg/uprobetracer/ldcache_parser.go trusts EntryCount enough to perform excessive iteration, computes cache1Len with overflowing uint32 arithmetic, and repeatedly calls readStringFromBytes in pkg/uprobetracer/bytes.go, where byte-by-byte immutable string concatenation produces quadratic work. While this processing occurs, pkg/container-hook holds the fanotify container-start pause, allowing a crafted cache to delay startup for roughly a minute, prevent Docker from starting other containers, and degrade monitoring. Processing caches from already-running containers can still consume CPU but does not hold the new-container startup pause, and the advisory establishes no confidentiality or integrity impact. This issue is fixed in version 0.53.1.

CVSS v3
6.9
EG Score
6.9(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity69% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

August 19, 2026

Last Modified

September 16, 2026

Advisory Details (4)

Auto-updated Sep 15, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

Release v0.53.1

Patch available: inspektor-gadget/inspektor-gadget v0.53.1

https://github.com/inspektor-gadget/inspektor-gadget/releases/tag/v0.53.1
github_commit

commit 2ca55021acf6 (inspektor-gadget/inspektor-gadget)

Fix landed in inspektor-gadget/inspektor-gadget commit 2ca55021acf6 — awaiting tagged release

https://github.com/inspektor-gadget/inspektor-gadget/commit/2ca55021acf675b65040beff2a5ec348054be782
github_pr

[BACKPORT] security hardening fixes for USDT/uprobe ELF/ld.so.cache parsing

Fix merged in inspektor-gadget/inspektor-gadget PR #5547 on 2026-06-02 — awaiting tagged release

https://github.com/inspektor-gadget/inspektor-gadget/pull/5547
github Patch Available

Uprobe gadgets: unprivileged container's ld.so.cache causes high CPU utilization and container startup DoS · Advisory · inspektor-gadget/inspektor-gadget · GitHub

https://github.com/inspektor-gadget/inspektor-gadget/security/advisories/GHSA-vjhx-2cqw-3q6q

Vendor Advisories for CVE-2026-53941(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/inspektor-gadget/inspektor-gadget—0.53.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 13× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 22:12 UTCEG score recompute
  2. 2026-09-20 20:16 UTCEPSS rescore
  3. 2026-09-19 21:58 UTCEG score recompute
  4. 2026-09-18 21:44 UTCEG score recompute
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-17 21:29 UTCEG score recompute
  7. 2026-09-17 19:31 UTCEPSS rescore
  8. 2026-09-16 16:58 UTCEG score recompute
  9. 2026-09-16 15:31 UTCEG score recompute
  10. 2026-09-16 14:08 UTCEPSS rescore
  11. 2026-09-15 18:36 UTCEG score recompute
  12. 2026-09-15 17:23 UTCEG score recompute▲ 6.90
  13. 2026-09-15 17:22 UTCMITRE cvelistV5CVSS v3 → 6.9 · CVSS v4 → 6.9
  14. 2026-08-19 19:42 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-53941?
CVE-2026-53941 is a medium vulnerability published on August 19, 2026. Inspektor Gadget is a set of tools and framework for data collection and system inspection on Kubernetes clusters and Linux hosts using eBPF. From 0.27.0 until 0.53.1, the uprobe library resolver can allow an unprivileged container to consume excessive CPU and block other containers from starting…
When was CVE-2026-53941 disclosed?
CVE-2026-53941 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53941 actively exploited?
CVE-2026-53941 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.7% of all scored CVEs.
What is the CVSS score of CVE-2026-53941?
CVE-2026-53941 has a CVSS v3 base score of 6.9 (NVD).
How do I remediate CVE-2026-53941?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53941, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-53941

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