CVE-2026-69112: Accelerate Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-4j2p-28q2-5m79
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CVSS 7.1
CWE-22
Published
Advisory Summary

CVE-2026-69112 is a MODERATE (CVSS 7.1) denial of service vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Accelerate libraries in the PyPI ecosystem. The issue involves accelerate path traversal and denial of service via sharded checkpoint weight_map entries. Remediation is available in the latest vendor maintenance releases.

CVE-2026-69112 at a Glance

CVE Identifier CVE-2026-69112
GHSA Identifier GHSA-4j2p-28q2-5m79
Severity MODERATE
CVSS v3.1 Base Score 7.1
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Accelerate
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-69112

To remediate this vulnerability, upgrade all affected Accelerate dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

accelerate fixed: Latest secure release 
pip install accelerate>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show accelerate

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-69112, inspect your installed packages using pip:

pip show accelerate

Analyze the terminal output to locate any version of Accelerate in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show accelerate command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Accelerate, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Hugging Face Accelerate through 1.14.0 contains a path traversal vulnerability in load_checkpoint_in_model and load_checkpoint_and_dispatch functions that fail to sanitize weight_map entries from sharded checkpoint indexes. Attackers can supply relative paths with ../ sequences or absolute paths to read arbitrary files, or point shard entries at named pipes to cause indefinite blocking and denial of service.

CVE-2026-69112 Affected Accelerate Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
accelerate
pypi/accelerate
PyPI
≤ 1.14.0

References

NVD — CVE-2026-69112 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-69112
Accelerate Source Repository REPOSITORY
https://github.com/huggingface/accelerate/issues/4067
Accelerate Source Repository REPOSITORY
https://github.com/huggingface/accelerate/pull/4070
Accelerate Source Repository REPOSITORY
https://github.com/huggingface/accelerate/pull/4138
Accelerate Source Repository REPOSITORY
https://github.com/huggingface/accelerate
www.vulncheck.com/advisories/hugging-... WEB
https://www.vulncheck.com/advisories/hugging-face-accelerate-path-traversal-and-dos-via-weight-map

Frequently Asked Questions

What is CVE-2026-69112?
CVE-2026-69112 is a security vulnerability in Accelerate involving Accelerate path traversal and denial of service via sharded checkpoint weight_map entries under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Accelerate versions are affected?
Affected versions include releases prior to current release patches across affected packages: accelerate.
What version fixes CVE-2026-69112?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is accelerate affected?
Yes, accelerate is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-69112?
CVE-2026-69112 has a CVSS v3.1 base score of 7.1 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H.
What CWE is associated with CVE-2026-69112?
CVE-2026-69112 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check PyPI dependencies for CVE-2026-69112?
Run the dependency tree command: 'pip show accelerate'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4j2p-28q2-5m79",
  "modified" : "2026-09-08T18:45:47Z",
  "published" : "2026-08-10T21:32:04Z",
  "aliases" : [ "CVE-2026-69112" ],
  "summary" : "Accelerate path traversal and denial of service via sharded checkpoint weight_map entries",
  "details" : "Hugging Face Accelerate through 1.14.0 contains a path traversal vulnerability in load_checkpoint_in_model and load_checkpoint_and_dispatch functions that fail to sanitize weight_map entries from sharded checkpoint indexes. Attackers can supply relative paths with ../ sequences or absolute paths to read arbitrary files, or point shard entries at named pipes to cause indefinite blocking and denial of service.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "accelerate"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.14.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-69112"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/huggingface/accelerate/issues/4067"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/huggingface/accelerate/pull/4070"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/huggingface/accelerate/pull/4138"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/huggingface/accelerate"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/hugging-face-accelerate-path-traversal-and-dos-via-weight-map"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-08T18:45:47Z",
    "nvd_published_at" : "2026-08-10T20:17:31Z"
  }
}