How severe is CVE-2026-7302?

CVE-2026-7302 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2026-7302 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-7302?

CVE-2026-7302 affects Lmsys Sglang. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-7302?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-7302 have an EU (EUVD) identifier?

Yes. CVE-2026-7302 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30764.

When was CVE-2026-7302 published?

CVE-2026-7302 was published on 2026-05-18 and last updated on 2026-06-17.

CVE-2026-7302

CVE-2026-7302 is a critical-severity vulnerability in Lmsys Sglang with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-35.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30764
Weakness: CWE-35
Affected product: Lmsys Sglang
Published: 2026-05-18
Last modified: 2026-06-17

Description

SGLangs multimodal generation runtime is vulnerable to an unauthenticated path traversal vulnerability, allowing an attacker to write arbitrary files anywhere the server process has write access, by including ../ sequences in the upload filename when sent to specific endpoints.

Frequently asked questions

What is CVE-2026-7302?: SGLangs multimodal generation runtime is vulnerable to an unauthenticated path traversal vulnerability, allowing an attacker to write arbitrary files anywhere the server process has write access, by including ../ sequences in the upload filename when sent to specific endpoints.
How severe is CVE-2026-7302?: CVE-2026-7302 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2026-7302 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-7302?: CVE-2026-7302 affects Lmsys Sglang. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-7302?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-7302 have an EU (EUVD) identifier?: Yes. CVE-2026-7302 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30764.
When was CVE-2026-7302 published?: CVE-2026-7302 was published on 2026-05-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:lmsys:sglang:0.5.10:-:*:*:*:*:*:*

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