Duplicate Advisory: vLLM introduced enhanced protection for CVE-2025-62164
Affects vllmSource GCVE Database
Mentioned vulnerabilities
CVSS 8.8 High : upgrade to 0.13.0 soon.
Data as of 12 Sep 2026, 00:46 UTC
- Patch
- Available – fixed in 0.13.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWhat to do
Upgrade vllm to 0.13.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| PyPIvllm | Affected
| Fixed in
|
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AI-suggested
A patch is available for this vulnerability. Users should upgrade vLLM to a fixed version at or beyond 0.13.0 to address the root cause. Prior mitigations that only disabled the prompt-embeds feature by default are insufficient. No additional vendor advisory content contradicts this guidance.
Description
### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-mcmc-2m55-j8jj. This link is maintained to preserve external references. ### Original Description vLLM versions >= 0.10.2 and < 0.13.0 are missing sparse tensor validation in multimodal embeddings processing. Because PyTorch disables sparse tensor invariant checks by default, an attacker can submit crafted embedding requests with malformed (negative or out-of-bounds) tensor indices, when the prompt-embeds feature is enabled, to trigger crashes or resource exhaustion (denial of service), with potential for out-of-bounds/write-what-where memory corruption. This continues CVE-2025-62164, whose prior fix only disabled the feature by default rather than addressing the root cause.
References
- github.com/vllm-project/vllm/security/advisories/GHSA-mcmc-2m55-j8jj (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-56340 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-56340 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2491060 (opens in a new tab)
- github.com/vllm-project/vllm (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-56340.json (opens in a new tab)
- vulncheck.com/advisories/vllm-denial-of-service-via-unvalidated-multimodal-embeddings (opens in a new tab)