CVE-2026-22773: vLLM is vulnerable to DoS in Idefics3 vision models via image payload with ambiguous dimensions
Vulnerability summary
CVE-2026-22773 is a high (CVSS 7.5) vulnerability in vllm-project vllm. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.3% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 0 · Related 1Timeline
- 10-01-2026PublishedVulnerability first disclosed.
- 12-01-2026Last modifiedVulnerability information updated.
Description
vLLM is an inference and serving engine for large language models (LLMs). In versions from 0.6.4 to before 0.12.0, users can crash the vLLM engine serving multimodal models that use the Idefics3 vision model implementation by sending a specially crafted 1x1 pixel image. This causes a tensor dimension mismatch that results in an unhandled runtime error, leading to complete server termination. This issue has been patched in version 0.12.0.
CVSS metrics
4 scores · 4 sources · 1 version- CVE.orgCNA6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · PypiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.44%
Chance of exploitation in the next 30 days
Percentile
37%
Versus all other CVEs
30-day change
Decrease -0.01 pp
From 0.45% on 22-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundVllm
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Chainguard2 products
- tritonserver-backend-vllm-cuda-12.9< 25.9.0_git20251112-r7 | < 25.9.0_git20251112-r6 | < 25.9.0_git20260318-r0
- tritonserver-backend-vllm-cuda-13.0< 25.11-r2
PyPI1 product
- vllm≥ 0.6.4, < 0.12.0
Vllm1 product
- vllm≥ 0.6.4, < 0.12.0
Vllm-project1 product
- vllm≥ 0.6.4, < 0.12.0
4 vendors · 5 products
References
7 links- github.com/vllm-project/vllm/security/advisories/GHSA-grg2-63fw-f2qrX Refsource CONFIRMWEBEVIDENCEAdvisoryExploitVendor Advisory
- github.com/vllm-project/vllmPACKAGE