CVE-2026-55832

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (8th percentile of EPSS-scored CVEs). 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
Elevated
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Tract is a tiny, no-nonsense, self-contained TensorFlow and ONNX inference toolkit. Prior to 0.21.17, 0.22.3, and 0.23.2, the tract-onnx crate passes the attacker-controlled external_data location from an ONNX model through onnx/src/tensor.rs get_external_resources and joins the value to the model directory without rejecting absolute paths or parent directory components. Loading an untrusted model through model_for_path can therefore make onnx/src/data_resolver.rs MmapDataResolver open an arbitrary local file and place the file contents into model tensors or inference output. Attacker-controlled offset and length fields can also select an out-of-range mapping slice and cause a denial of service, but the flaw does not write files or execute code. This issue is fixed in versions 0.21.17, 0.22.3, and 0.23.2.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
43
EG Risk 43/100CISA SSVC

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
Severity61% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
8th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

June 19, 2026

Last Modified

September 30, 2026

Advisory Details (7)

Auto-updated Sep 14, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

tract 0.23.2

Patch available: sonos/tract v0.23.2

https://github.com/sonos/tract/releases/tag/v0.23.2
github_release Patch Available

0.22.3

Patch available: sonos/tract 0.22.3

https://github.com/sonos/tract/releases/tag/0.22.3
github_release Patch Available

0.21.17

Patch available: sonos/tract 0.21.17

https://github.com/sonos/tract/releases/tag/0.21.17
github_commit

commit 8fdacbd7abe4 (sonos/tract)

Fix landed in sonos/tract commit 8fdacbd7abe4 — awaiting tagged release

https://github.com/sonos/tract/commit/8fdacbd7abe4e6f929cadfe52e7f69e2227c0632
github_commit

commit 85f4fac23e43 (sonos/tract)

Fix landed in sonos/tract commit 85f4fac23e43 — awaiting tagged release

https://github.com/sonos/tract/commit/85f4fac23e43d417782e8ed9f9465be8474f5c98
github_commit

commit 5f994bcf3cec (sonos/tract)

Fix landed in sonos/tract commit 5f994bcf3cec — awaiting tagged release

https://github.com/sonos/tract/commit/5f994bcf3cec9b343830a975fedce177f9190d0f
githubMentions a patch (unverified)🟡 PoC Available

Arbitrary file read via unsanitized ONNX external_data `location` (path traversal) on model load in tract-onnx · Advisory · sonos/tract · GitHub

https://github.com/sonos/tract/security/advisories/GHSA-h668-6x6g-f8r5

Vendor Advisories for CVE-2026-55832(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)
crates.io(1)
PackageVulnerable rangeFix by version rangeDependents
tract-onnx—
  • every version up to 0.21.17: fixed in 0.21.17
  • 0.22.0 up to 0.22.3: fixed in 0.22.3
  • 0.23.0 up to 0.23.2: fixed in 0.23.2
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 24× 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. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:18 UTCEPSS rescore
  5. 2026-10-05 17:43 UTCEPSS rescore
  6. 2026-10-04 23:22 UTCEPSS rescore
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-02 17:56 UTCEPSS rescore
  9. 2026-10-01 19:50 UTCEPSS rescore
  10. 2026-09-30 20:04 UTCEG score recompute
  11. 2026-09-30 15:03 UTCEPSS rescore
  12. 2026-09-29 15:22 UTCEPSS rescore
  13. 2026-09-28 13:51 UTCEPSS rescore
  14. 2026-09-27 13:48 UTCEPSS rescore
  15. 2026-09-26 15:59 UTCEPSS rescore
  16. 2026-09-24 14:04 UTCEPSS rescore
  17. 2026-09-23 17:54 UTCEPSS rescore
  18. 2026-09-20 20:16 UTCEPSS rescore
  19. 2026-09-18 19:28 UTCEPSS rescore
  20. 2026-09-17 19:31 UTCEPSS rescore
  21. 2026-09-16 14:08 UTCEPSS rescore
  22. 2026-09-16 05:15 UTCEPSS rescore
  23. 2026-09-14 19:24 UTCEG score recompute
  24. 2026-09-14 18:28 UTCEG score recompute
  25. 2026-07-31 03:48 UTCEG score recompute
Show 3 more
  1. 2026-07-26 16:57 UTCEG score recompute
  2. 2026-07-23 03:20 UTCEG score recompute
  3. 2026-06-19 14:56 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-55832?
CVE-2026-55832 is a medium vulnerability published on June 19, 2026. Tract is a tiny, no-nonsense, self-contained TensorFlow and ONNX inference toolkit. Prior to 0.21.17, 0.22.3, and 0.23.2, the tract-onnx crate passes the attacker-controlled externaldata location from an ONNX model through onnx/src/tensor.rs getexternalresources and joins the value to the model…
When was CVE-2026-55832 disclosed?
CVE-2026-55832 was first published on June 19, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55832 actively exploited?
CVE-2026-55832 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-55832?
CVE-2026-55832 has a CVSS base score of 6.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-55832?
A fix for CVE-2026-55832 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-55832 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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