Vulnerability · Published May 18, 2026 · Assigned by certcc
CVE-2026-7302CVE-2026-7302
Critical 9.1
In plain English
A critical-severity security flaw in SGLang from SGLang. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.4%top 67.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | sglang | no fix listed | GHSA-qwrp-wghp-94q2 |
| PyPI | sglang | no fix listed | PYSEC-2026-538 |
Affected products (as reported)
Weakness: CWE-35 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H