CVE-2026-3989

CVE Enrichment

CVSS: 7.8 HIGH
EPSS: 0.54%
EPSS Percentile: 45.56%
CISA KEV: Not listed

Description

SGLangs `replay_request_dump.py` contains an insecure pickle.load() without validation and proper deserialization. An attacker can take advantage of this by providing a malicious .pkl file, which will execute the attackers code on the device running the script.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 12-Mar-2026 19:15
Last Modified: 10-Aug-2026 21:32
EPSS Date: 2026-11-08
CWE: CWE-502

CVSS Vector


            CVSS:3.1                            AV:L /
                            AC:L /
                            PR:N /
                            UI:R /
                            S:U /
                            C:H /
                            I:H /
                            A:H

CNA Products / Version Status

SGLang · SGLang Source: CNA · [email protected]
Default status: unknown

0.5.10 — affected

Affected Products / Versions

lmsys / sglang Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 0.5.10
cpe:2.3:a:lmsys:sglang:*:*:*:*:*:*:*:*

References

Last enrichment sync: 08-Nov-2026 23:04
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

SGLang contains severe pickle deserialization flaws (CVE-2026-3059, CVE-2026-3060, CVE-2026-3989) allowing unauthenticated remote code execution; restrict ZeroMQ exposure and monitor for anomalous SGLang activity. Researchers Detail Data-Exfiltration Risk in Amazon Bedrock and Flaws in LangSmith and SGLang

CVE (3)

People (5)

MITRE ATT&CK (6)

Vendors (1)

Products (3)

Industries (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.