CVE-2026-15969

CRITICAL

9.8

CVSS Score

Published: July 30, 2026 at 06:09 PM UTC

Updated: August 4, 2026 at 10:03 PM UTC

2 products affected across 2 vendorsSglangSGLang

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Severity

CRITICAL9.8

Exploit prediction

EPSS 1%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Sglang · Lmsys

95%

v ≤ 0.5.15

SGLang · sgl-project

60%

v ≤ v0.5.15

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://thoughts.apoorvdayal.com/posts/sglang-disclosures/

References (2)

Broken Link

Source: cverecord

https://github.com/sgl-project/sglang/security/advisories/GHSA-2wvm-gjg7-5jfm

Third Party AdvisoryMitigation

Source: cverecord

https://thoughts.apoorvdayal.com/posts/sglang-disclosures/

SSVC — Action Prioritization

SSVCNo known exploitAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

9.8CRITICALCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-502

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