CVE-2026-15969CWE-502insecure-deserialization

CVE-2026-15969

Critical · published July 30, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
63.2
In the wild
Unconfirmed
What it is

SGLang contains an unauthenticated RCE in /load_lora_adapter_from_tensors via bypass of SafeUnpickler’s incomplete denylist, allowing arbitrary command execution through crafted base64-encoded pickle payloads.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01024 · 63.2th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-07-30T23:17Z
Affected products (1)
ProductVersionsFixed in
lmsys/sglang≤ 0.5.15—
References (2)
https://github.com/sgl-project/sglang/security/advisories/GHSA-2wvm-gjg7-5jfm · [email protected]https://thoughts.apoorvdayal.com/posts/sglang-disclosures/ · [email protected]
EPSS history
Timeline
  • 30 JUL 18:09Z
    CVE-2026-15969
    cvelistv5