Vulnerability details
CVE-2026-27971
QwikDev qwik
Qwik affected by unauthenticated RCE via server$ Deserialization
CVSS 4.0
9.2Critical
Official description
Qwik is a performance focused javascript framework. qwik <=1.19.0 is vulnerable to RCE due to an unsafe deserialization vulnerability in the server$ RPC mechanism that allows any unauthenticated user to execute arbitrary code on the server with a single HTTP request. Affects any deployment where require() is available at runtime. This vulnerability is fixed in 1.19.1.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.2Critical | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| QwikDev | qwik | < 1.19.1 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/QwikDev/qwik/security/advisories/GHSA-p9x5-jp3h-96mm x_refsource_CONFIRM
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Details
- Published
- 2026-03-04
- Last updated
- 2026-03-04
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
5.47%
Probability of exploitation in 30 days
92.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-502Deserialization of Untrusted Data