CVE-2026-47699

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 79% 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
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.4Exploit: None knownExposed: 0

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

Confidential Containers Guest Components provides guest tools and components for confidential container workloads. From 0.16.0 until 0.20.0, a crafted OCI image layer can make image_rs::stream::unpack::unpack() create a hardlink outside its destination directory. In image-rs/src/stream/unpack.rs, try_hardlink_fallback() validates the hardlink source but computes the destination with destination.join(&entry_rel). Rust Path::join replaces the base when entry_rel is an absolute tar entry path, so fs::hard_link(&src_canon, &dst_entry_abs) can write attacker-controlled content to an arbitrary absolute path. In Confidential Containers the workload owner already controls trusted image content, so the issue is a workload-owner escape into the pod virtual machine rather than a crossing of the image trust boundary, but it may enable access to pod virtual machine capabilities and attestation abuse. This issue is fixed in version 0.20.0.

CVSS v3
6.4
EG Score
6.4(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity64% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 18, 2026

Last Modified

August 21, 2026

Advisory Details (6)

Auto-updated Aug 18, 2026
Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available

image-rs: zip-slip-class arbitrary file write via absolute entry path in hardlink fallback · Advisory · confidential-containers/guest-components · GitHub

https://github.com/confidential-containers/guest-components/security/advisories/GHSA-84rc-2q4r-45pc
github_release Patch Available

v0.20.0

Patch available: confidential-containers/guest-components v0.20.0

https://github.com/confidential-containers/guest-components/releases/tag/v0.20.0
github_pr Patch Available

image-rs: use pathrs when unpacking

Patch available: confidential-containers/guest-components v0.20.0 (PR #1457 merged 2026-05-14)

https://github.com/confidential-containers/guest-components/pull/1457
github_pr Patch Available

image-rs: introduce pathrs (incrementally)

Patch available: confidential-containers/guest-components v0.20.0 (PR #1440 merged 2026-05-07)

https://github.com/confidential-containers/guest-components/pull/1440
github_commit Patch Available

commit 7cc1bc458973 (confidential-containers/guest-components)

Patch available: confidential-containers/guest-components v0.20.0 (contains commit 7cc1bc458973)

https://github.com/confidential-containers/guest-components/commit/7cc1bc458973310296e58aedbb15cb7963297bbe
github_commit Patch Available

commit 14fbb711af0b (confidential-containers/guest-components)

Patch available: confidential-containers/guest-components v0.20.0 (contains commit 14fbb711af0b)

https://github.com/confidential-containers/guest-components/commit/14fbb711af0b29bb9cad307969d57b0de9b85d7f

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 23× 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. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 10:56 UTCEG score recompute
  3. 2026-08-28 21:41 UTCEPSS rescore
  4. 2026-08-28 08:48 UTCEG score recompute
  5. 2026-08-27 14:25 UTCEPSS rescore
  6. 2026-08-27 06:46 UTCEG score recompute
  7. 2026-08-26 14:46 UTCEPSS rescore
  8. 2026-08-26 04:22 UTCEG score recompute
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-25 02:22 UTCEG score recompute
  11. 2026-08-24 00:22 UTCEG score recompute
  12. 2026-08-23 00:19 UTCEPSS rescore
  13. 2026-08-22 22:23 UTCEG score recompute
  14. 2026-08-21 23:49 UTCEPSS rescore
  15. 2026-08-21 20:23 UTCEG score recompute
  16. 2026-08-21 19:34 UTCEG score recompute
  17. 2026-08-21 02:23 UTCEG score recompute
  18. 2026-08-20 22:55 UTCEPSS rescore
  19. 2026-08-20 00:23 UTCEG score recompute
  20. 2026-08-19 17:04 UTCEPSS rescore
  21. 2026-08-18 22:23 UTCEG score recompute
  22. 2026-08-18 21:38 UTCEG score recompute
  23. 2026-08-18 21:38 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-47699?
CVE-2026-47699 is a medium vulnerability published on August 18, 2026. Confidential Containers Guest Components provides guest tools and components for confidential container workloads. From 0.16.0 until 0.20.0, a crafted OCI image layer can make imagers::stream::unpack::unpack() create a hardlink outside its destination directory. In image-rs/src/stream/unpack.rs,…
When was CVE-2026-47699 disclosed?
CVE-2026-47699 was first published in the National Vulnerability Database on August 18, 2026, with the most recent update on August 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47699 actively exploited?
CVE-2026-47699 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 79.0% of all scored CVEs.
What is the CVSS score of CVE-2026-47699?
CVE-2026-47699 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-47699?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47699, 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

Explore the affected products and dependency analysis for CVE-2026-47699

Explore →

Is Your Infrastructure Affected by CVE-2026-47699?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs