Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
huggingface huggingface/transformers — Policy Bypass in LightGlue Nested Config Resolution in huggingface/transformers
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N R C H H H 9.6 .0055 43.5 —
AFFECTED
Product Versions Fixed
huggingface/transformers unspecified – —
TIMELINE
Mar 31 Reserved by @huntr_ai
Jun 3 EXPLOIT PUBLISHED — CVE-2026-5241 (huggingface/transformers). Public exploit reference added.
Jun 3 Published (CNA: @huntr_ai)
Aug 12 EXPLOIT PUBLISHED — CVE-2026-5241 (huggingface/transformers). Public exploit reference added.
Aug 12 RESCORED — CVE-2026-5241 (huggingface/transformers). CVSS 8 → 9.6 (NVD).
Description
A vulnerability in the LightGlue model loading path of huggingface/transformers version 5.2.0 allows an attacker-controlled model repository to execute arbitrary code during model initialization. The issue arises because the `trust_remote_code` parameter, intended to prevent remote code execution, is overridden by untrusted serialized configuration data in a nested code path. Specifically, when loading a LightGlue model using `AutoModel.from_pretrained()` with `trust_remote_code=False`, the `LightGlueConfig` reads the `trust_remote_code` value from the untrusted `config.json` file and propagates it into nested `AutoConfig.from_pretrained()` calls. This results in the execution of attacker-provided Python modules, even when the victim explicitly disables remote code execution. The vulnerability poses a high risk for environments such as API inference servers, research notebooks, CI/CD pipelines, and model evaluation workers, potentially leading to credential theft, lateral movement, or persistence/backdoor deployment.
Lifecycle
Complete event history — 5 events, chronological
| Date | Event | Detail |
|---|
| March 31, 2026 | Reserved | Reserved by @huntr_ai |
| June 3, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-5241 (huggingface/transformers). Public exploit reference added. |
| June 3, 2026 | Published | Published (CNA: @huntr_ai) |
| August 12, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-5241 (huggingface/transformers). Public exploit reference added. |
| August 12, 2026 | RESCORED | RESCORED — CVE-2026-5241 (huggingface/transformers). CVSS 8 → 9.6 (NVD). |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| huggingface | huggingface/transformers | — | unspecified | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-5241 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.