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TI-2026-85480 Aliases CVE-2026-70660

Out-of-bounds read in stable-diffusion.cpp safetensors loader

Priority LOW 29CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

stable-diffusion.cpp before master-764-e22272e does not check that a tensor's data_offsets stay within the safetensors file's data section (CWE-125). A local attacker can supply a crafted .safetensors file that makes the library read adjacent process memory into tensor buffers or crash, once a user loads it.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inference. Prior to master-764-e22272e, the safetensors loader in src/model_io/safetensors_io.cpp trusts each tensor's data_offsets after checking only that nbytes equals end - begin. A crafted .safetensors file can declare a byte range beyond the file's data section, causing src/model_loader.cpp to consume an attacker-chosen length from an unchecked mapped-file offset. Loading the model can read adjacent process memory into tensor buffers or crash the process. This issue is fixed in master-764-e22272e.

Why it matters now

EPSS 0.00129 2nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
leejetstable-diffusion.cpp< master-764-e22272e—No fix listedCNA
  • stable-diffusion.cpp Vendorleejet Affected < master-764-e22272e Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:leejet:stable-diffusion.cpp:*:*:*:*:*:*:*:*——leejet
  • cpe:2.3:a:leejet:stable-diffusion.cpp:*:*:*:*:*:*:*:* Versions — — ·leejet

Remediation

Update stable-diffusion.cpp to master-764-e22272e, the version that fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-11-05 Threatist record created from CVE-2026-70660
  2. 2026-11-06 Affected versions changed · Red Hat
  3. 2026-11-06 CVSS score added · Red Hat
  4. 2026-11-07 Priority changed: MEDIUM → LOW

References

Other 4

  • TI-2026-35250 stable-diffusion.cpp: Heap buffer overflow in GLOBAL opcode parsing for PyTorch checkpoint files CVSS 3.1HIGH 7.8
  • TI-2026-35249 stable-diffusion.cpp: Heap buffer overflow in SHORT_BINUNICODE parsing for PyTorch checkpoint files CVSS 3.1HIGH 7.8
  • TI-2026-35247 stable-diffusion.cpp has a Heap-based Buffer Overflow CVSS 3.1HIGH 7.8
  • TI-2026-35248 stable-diffusion.cpp: Out-of-bounds reads in PyTorch checkpoint pickle opcode parsing CVSS 3.1MEDIUM 5.5
  • TI-2026-85479 Heap out-of-bounds write in stable-diffusion.cpp imatrix loader CVSS 3.1HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences