CVE-2026-1839

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 93% 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, nvd
Elevated
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

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

A vulnerability in the HuggingFace Transformers library, specifically in the Trainer class, allows for arbitrary code execution. The _load_rng_state() method in src/transformers/trainer.py at line 3059 calls torch.load() without the weights_only=True parameter. This issue affects all versions of the library supporting torch>=2.2 when used with PyTorch versions below 2.6, as the safe_globals() context manager provides no protection in these versions. An attacker can exploit this vulnerability by supplying a malicious checkpoint file, such as rng_state.pth, which can execute arbitrary code when loaded. The issue is resolved in version v5.0.0rc3.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
27.0%
KEV
Not listed

Published

April 7, 2026

Last Modified

April 28, 2026

Advisory Details (2)

Auto-updated Jun 11, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

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github_commit

commit 03c8082ba459 (huggingface/transformers)

Fix landed in huggingface/transformers commit 03c8082ba459 — awaiting tagged release

https://github.com/huggingface/transformers/commit/03c8082ba4594c9b8d6fe190ca9bed0e5f8ca396

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
transformers0.1 ... 5.0.0rc2 (208 versions)5.0.0rc3—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 36× 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. 2026-07-11 08:27 UTCEPSS rescore
  2. 2026-07-09 19:10 UTCEPSS rescore
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  1. 2026-06-21 01:59 UTCEPSS rescore
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  12. 2026-06-11 21:28 UTCEG score recompute
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  15. 2026-06-10 12:58 UTCEG score recompute
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  18. 2026-06-08 14:17 UTCEPSS rescore
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  20. 2026-06-08 08:22 UTCEG score recompute
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  22. 2026-06-07 15:25 UTCEPSS rescore
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  25. 2026-06-06 13:47 UTCEPSS rescore
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  67. 2026-05-18 21:31 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-1839?
CVE-2026-1839 is a high vulnerability published on April 7, 2026. A vulnerability in the HuggingFace Transformers library, specifically in the Trainer class, allows for arbitrary code execution. The loadrngstate() method in src/transformers/trainer.py at line 3059 calls torch.load() without the weightsonly=True parameter. This issue affects all versions of the…
When was CVE-2026-1839 disclosed?
CVE-2026-1839 was first published in the National Vulnerability Database on April 7, 2026, with the most recent update on April 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-1839 actively exploited?
CVE-2026-1839 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-1839?
CVE-2026-1839 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-1839?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1839, 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

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