CVE-2026-111987: medium-severity vulnerability in AUTOMATIC1111 stable-diffusion-webui
AUTOMATIC1111 stable-diffusion-webui Extra-Networks Card Builder sd_models.py read_metadata_from_safetensors cross site scripting
Published · Updated
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.4%
exploitation probability
0.4%top 71% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
A vulnerability was identified in AUTOMATIC1111 stable-diffusion-webui up to 1.10.1. Affected by this vulnerability is the function read_metadata_from_safetensors of the file modules/sd_models.py of the component Extra-Networks Card Builder. Such manipulation of the argument __metadata__.sshs_model_hash leads to cross site scripting. The attack can be launched remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Affected products
AUTOMATIC1111 · stable-diffusion-webuipublic PoCs found — 1
cve_referencegithub.com/user-attachments/files/32834382/a1111-sshs-hash-poc.zipunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — AUTOMATIC1111 stable-diffusion-webui
In the same product, most dangerous first.
CVE-2024-31462MEDIUMLimited file write in Stable-diffusion-webui - GHSL-2024-010EPSS 0.7%CVE-2026-111985MEDIUMAUTOMATIC1111 stable-diffusion-webui Metadata Extraction sd_models.py read_metadata_from_safetensors allocation of resourcesEPSS 0.4%CVE-2026-82288HIGHStable Diffusion WebUI Credential Disclosure via /sdapi/v1/cmd-flagsEPSS 0.4%CVE-2026-111984MEDIUMAUTOMATIC1111 stable-diffusion-webui Card Builder ui_extra_networks.py create_item_html cross site scriptingEPSS 0.4%CVE-2026-111986MEDIUMAUTOMATIC1111 stable-diffusion-webui Model Instantiation sd_models.py get_obj_from_str code injectionEPSS 0.3%
References
https://github.com/AUTOMATIC1111/stable-diffusion-webui/https://github.com/AUTOMATIC1111/stable-diffusion-webui/issues/17500https://github.com/user-attachments/files/32834382/a1111-sshs-hash-poc.ziphttps://vuldb.com/cve/CVE-2026-111987https://vuldb.com/submit/1006710https://vuldb.com/vuln/421653https://vuldb.com/vuln/421653/cti