sgl-project sglang up to 0.5.21 HTTP Endpoint http_server.py server_info api_key cleartext transmission

Summaryinfo

A vulnerability has been found in sgl-project sglang up to 0.5.21 and classified as problematic. Impacted is the function server_info of the file python/sglang/srt/entrypoints/http_server.py of the component HTTP Endpoint. Performing a manipulation of the argument api_key results in cleartext transmission. This vulnerability is identified as CVE-2026-105245. The attack can be initiated remotely. Additionally, an exploit exists. The pull request to fix this issue awaits acceptance.

Detailsinfo

A vulnerability classified as problematic has been found in sgl-project sglang up to 0.5.21. This affects the function server_info of the file python/sglang/srt/entrypoints/http_server.py of the component HTTP Endpoint. The manipulation of the argument api_key with an unknown input leads to a cleartext transmission vulnerability. CWE is classifying the issue as CWE-319. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. This is going to have an impact on confidentiality.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-105245. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The attack technique deployed by this issue is T1040 according to MITRE ATT&CK.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The pull request to fix this issue awaits acceptance.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Project Management Software

Vendor

• sgl-project

Name

• sglang

Version

• 0.5.0
• 0.5.1
• 0.5.2
• 0.5.3
• 0.5.4
• 0.5.5
• 0.5.6
• 0.5.7
• 0.5.8
• 0.5.9
• 0.5.10
• 0.5.11
• 0.5.12
• 0.5.13
• 0.5.14
• 0.5.15
• 0.5.16
• 0.5.17
• 0.5.18
• 0.5.19
• 0.5.20
• 0.5.21

Website

• Product: https://github.com/sgl-project/sglang/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

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CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #975910: https://github.com/sgl-project/ sglang commit 594ec63 Cleartext Transmission of Sensitive Information (by geochen)

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