CVE-2026-15971
CVE-2026-15971
Description
SGLang contains an RCE vulnerability when the optional dumper subsystem is enabled, allowing for a sandbox escape when DUMPER_SERVER_PORT is set, enabling code execution on inference requests.
INFO
Published Date :
July 30, 2026, 7:17 p.m.
Last Modified :
Aug. 4, 2026, 8:42 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Disable the optional dumper subsystem.
- Restrict access to DUMPER_SERVER_PORT.
- Update SGLang to a patched version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-15971.
| URL | Resource |
|---|---|
| https://github.com/sgl-project/sglang/security/advisories/GHSA-h6rf-77vv-9mvj | Broken Link |
| https://thoughts.apoorvdayal.com/posts/sglang-disclosures/ | Third Party Advisory Mitigation |
| https://thoughts.apoorvdayal.com/posts/sglang-disclosures/ | Third Party Advisory Mitigation |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-15971 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-15971
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-15971 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-15971 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 04, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:lmsys:sglang:*:*:*:*:*:*:*:* versions up to (including) 0.5.15 Added Reference Type CERT/CC: https://github.com/sgl-project/sglang/security/advisories/GHSA-h6rf-77vv-9mvj Types: Broken Link Added Reference Type CERT/CC: https://thoughts.apoorvdayal.com/posts/sglang-disclosures/ Types: Mitigation, Third Party Advisory Added Reference Type CISA-ADP: https://thoughts.apoorvdayal.com/posts/sglang-disclosures/ Types: Mitigation, Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 31, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-95 Added Reference https://thoughts.apoorvdayal.com/posts/sglang-disclosures/ Added SSVC {'id': 'CVE-2026-15971', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-31T19:28:12.572820Z'} -
New CVE Received by [email protected]
Jul. 30, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'SGLang', 'product': 'SGLang', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'custom', 'lessThanOrEqual': 'v0.5.15'}]}] Added Description SGLang contains an RCE vulnerability when the optional dumper subsystem is enabled, allowing for a sandbox escape when DUMPER_SERVER_PORT is set, enabling code execution on inference requests. Added Reference https://github.com/sgl-project/sglang/security/advisories/GHSA-h6rf-77vv-9mvj Added Reference https://thoughts.apoorvdayal.com/posts/sglang-disclosures/