CVE-2026-111392CWE-345

CVE-2026-111392

Medium · published October 16, 2026

CVSS v3.1
4.8
EPSS
0%
Percentile
10.1
In the wild
Unconfirmed
What it is

SGLang through 0.5.21 trusts caller-supplied mm_hashes values as the multimodal prefix-cache key, allowing remote attackers to poison cached KV entries across requests. Attackers can send a different image under a known or predicted hash via /generate to disclose another request's image content or corrupt victims' responses.

The record
Technical detail
CVSS v3.1
4.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
6.3 · CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00206 · 10.1th percentile
Weakness
CWE-345 · Insufficient Verification of Data Authenticity
Published
2026-10-16T22:17Z
References (6)
https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/managers/io_struct.py#L205-L215 · [email protected]https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/managers/tokenizer_manager.py#L1183-L1215 · [email protected]https://github.com/sgl-project/sglang/issues/44641 · [email protected]https://github.com/sgl-project/sglang/pull/44653 · [email protected]https://www.vulncheck.com/advisories/sglang-through-0.5.21-kv-cache-poisoning-via-mm-hashes-in-generate · [email protected]https://github.com/sgl-project/sglang/issues/44641 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 18 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 16 OCT 17:38Z
    SGLang through 0.5.21 KV Cache Poisoning via mm_hashes in /generate
    cvelistv5
  • 16 OCT 17:38Z
    SGLang through 0.5.21 KV Cache Poisoning via mm_hashes in /generate
    cvelistv5