Security Digest · Vulnerability record
CVE-2026-3060: SGLang's encoder parallel disaggregation system is vulnerable to unauthenticated remote code execution through the disaggregation module
SGLang' encoder parallel disaggregation system is vulnerable to unauthenticated remote code execution through the disaggregation module, which deserializes untrusted data using pickle.loads() without authentication.
CVSS 9.8 Critical EPSS 1.5% · p74
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 1.5%, percentile 74: FIRST’s model estimates a 1.5% chance of exploitation activity in the next 30 days, higher than 74% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes
sglang(PyPI) <= 0.5.9, fixed in 0.5.10. Check your lockfile, including transitive dependencies.
What it is
SGLang' encoder parallel disaggregation system is vulnerable to unauthenticated remote code execution through the disaggregation module, which deserializes untrusted data using pickle.loads() without authentication.
From the GitHub advisory
SGLang's encoder parallel disaggregation system is vulnerable to unauthenticated remote code execution through the disaggregation module, which deserializes untrusted data using pickle.loads() without authentication.
Weakness type: CWE-502.
Product: sglang (PyPI) · Assigned by: certcc · Published: 2026-03-12
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| PyPI | sglang | <= 0.5.9 | 0.5.10 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| SGLang | SGLang | 0.5.10 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADP | 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-10-21): 1.50% probability of exploitation activity in the next 30 days; percentile 74.
Timeline
- — CVE record published by certcc
- — GitHub-reviewed advisory GHSA-jx93-g359-86wm published (critical)
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-jx93-g359-86wm github.com
- CVE.org record CVE-2026-3060 cve.org
- NVD entry CVE-2026-3060 nvd.nist.gov
Other references from the CVE record and advisory
- github.com github.com
- orca.security orca.security
- github.com github.com
- github.com github.com