Vulnerability in diffusers (CVE-2026-45804)
Summary
Vulnerability in diffusers (CVE-2026-45804). Successful exploitation can lead to full system takeover. Exploitable via diffusers. Mitigation: upgrade to 0.38.0 or later.
Original description
The description as published by the source.
Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, Diffusers' DiffusionPipeline.from_pretrained flow can bypass the trust_remote_code guard because download() validates model_index.json and custom pipeline code before later loading from a cached folder that can change, allowing a Hub repository with custom .py pipeline code to execute through the custom pipeline flow without passing custom_pipeline or trust_remote_code=True. This issue is fixed in version 0.38.0.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-45804 has been found in diffusers.
Attackers can target a specific entry point like diffusers over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 7.5/10.
What to do: upgrade diffusers to 0.38.0 or later.
If unsure, ask your IT team or search "diffusers CVE-2026-45804" on the vendor's site.
CVE-2026-45804 (diffusers) — CWE-367 / CVSS v3 7.5
Attack vector: remote (network-reachable) / unauthenticated
Attack surface: diffusers / transformers / DiffusionPipeline.from_pretrained / trust_remote_code
Patched: 0.38.0 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-367) exists in diffusers. Attackers reach the vulnerable code path via diffusers without authentication.
Check the vendor advisory for the affected versions of diffusers. Attack surface: diffusers / transformers / DiffusionPipeline.from_pretrained / trust_remote_code.
Severity: High (CVSS 7.5/10). Successful exploitation can lead to full system takeover.
Update to 0.38.0.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'diffusers' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'diffusers' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
diffusersを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade diffusers to 0.38.0ステージング環境で 0.38.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com
- package github.com
- patch github.com
- patch github.com
- report github.com
- web github.com
- web github.com
- web github.com