CVE-2026-47749: stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Im

Q: How do I fix CVE-2026-47749?

stable-diffusion.cpp: upgrade to master-584-0a7ae07. Exact commands for each OS are on this page.

Q: Is CVE-2026-47749 being exploited?

CVE-2026-47749 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-47749 affect?

CVE-2026-47749 affects stable-diffusion.cpp. Severity is high (CVSS 7.8). stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inference. Versions prior to master-584-0a7ae07 are vulnerable to heap buffer overflow in SHORT_BINUNICODE

Q: How urgent is CVE-2026-47749?

Priority 35/100. High severity; Public exploit reference

Routine

HIGH 7.8UPGRADE

CVE-2026-47749 is a high-severity flaw (CVSS 7.8) affecting stable-diffusion.cpp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inference. Versions prior to master-584-0a7ae07 are vulnerable to heap buffer overflow in SHORT_BINUNICODE parsing for PyTorch checkpoint files. The pickle .ckpt parser in src/model.cpp contained a heap buffer overflow vulnerability in the SHORT_BINUNICODE opcode handler. The issue was caused by sign confusion on t

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 90%)
CISA exploited list	No
Weakness	CWE-122, CWE-787
Published	2026-06-16
Last modified	2026-10-25

Publisher (CNA): GitHub, Inc. · Vendor: leejet

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-16 19:16 UTCPublished CVE record published
2026-10-25 23:10 UTCUpdated Record last modified

leejet stable-diffusion.cpp UPGRADE

Affected: < master-584-0a7ae07

Fixed in: master-584-0a7ae07

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy stable-diffusion.cpp || rpm -q stable-diffusion.cpp || stable-diffusion.cpp --version

2. UPGRADE to master-584-0a7ae07 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade stable-diffusion.cpp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade stable-diffusion.cpp

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-47749?

stable-diffusion.cpp: upgrade to master-584-0a7ae07. Exact commands for each OS are on this page.

Is CVE-2026-47749 being exploited?

CVE-2026-47749 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-47749 affect?

CVE-2026-47749 affects stable-diffusion.cpp. Severity is high (CVSS 7.8). stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inference. Versions prior to master-584-0a7ae07 are vulnerable to heap buffer overflow in SHORT_BINUNICODE

How urgent is CVE-2026-47749?

Priority 35/100. High severity; Public exploit reference

Software pages

PyTorch vulnerabilities · Check Point vulnerabilities

Related CVEs

CVE-2026-47747 HIGH 7.8 UPGRADE stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Im
CVE-2026-47750 HIGH 7.8 UPGRADE stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Im
CVE-2026-47748 MEDIUM 5.5 UPGRADE stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Im

References

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