Process crash via unchecked pickle opcode bounds
Published Jun 16, 2026 · Updated Jun 16, 2026
Out-of-bounds reads in stable-diffusion.cpp before master-584-0a7ae07 allow attackers to crash the process via a malformed .ckpt file. Opcode handlers in src/model.cpp advance the parser buffer and read arguments without verifying that buffer + N remains within buffer_end. Exploitation requires an application or victim to load an attacker-supplied .ckpt model and results in a process crash rather than data disclosure or modification.
Summary
What happened
Out-of-bounds reads in stable-diffusion.cpp before master-584-0a7ae07 allow attackers to crash the process via a malformed .ckpt file. Opcode handlers in src/model.cpp advance the parser buffer and read arguments without verifying that buffer + N remains within buffer_end. Exploitation requires an application or victim to load an attacker-supplied .ckpt model and results in a process crash rather than data disclosure or modification.
The record
- CVE
- CVE-2026-47748
- Published
- Jun 16, 2026
- Updated
- Jun 16, 2026
- Vendor
- leejet
- Product
- stable-diffusion.cpp
- Classifications
- CWE-125, T1499.004, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 16, 2026CVE publishedPublication date reported by the CVE source.
- Jun 16, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=< master-584-0a7ae07
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Malformed .ckpt process-crash proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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