Sails DoS vulnerability for apps with sockets enabled
Priority MEDIUM 41CWE-248Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-248.
Summary
Sails is a realtime MVC Framework for Node.js. In Sails apps prior to version 1.5.7,, an attacker can send a virtual request that will cause the node process to crash. This behavior was fixed in Sails v1.5.7. As a workaround, disable the sockets hook and remove the `sails.io.js` client.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00937 61st percentileScored 2026-11-07
Fix Fixed sails (balderdashy): 1.5.7sails (npm): 1.5.7
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| balderdashy | sails | before 1.5.7 | 1.5.7 | Patch available | CNA |
| — | sails (npm) | before 1.5.7 | 1.5.7 | Patch available | GHSA-gpw9-fwm8-7rx7 |
- sails Vendorbalderdashy Affected before 1.5.7 Fixed in 1.5.7 Patch available CNA
- sails (npm) Vendor— Affected before 1.5.7 Fixed in 1.5.7 Patch available GHSA-gpw9-fwm8-7rx7
Remediation
- Fix · CNA sails (balderdashy) Fixed in 1.5.7
- Fix · GHSA-gpw9-fwm8-7rx7 sails (npm) Fixed in 1.5.7 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-38504
- 2026-10-03 Alias added: GHSA-gpw9-fwm8-7rx7
References
Advisory 2
More Sailsjs Sails vulnerabilities
- TI-2021-20324 SailsJS Sails.js <=1.4.0 is vulnerable to Prototype Pollution via… CVSS 3.1CRITICAL 9.8
- TI-2018-14998 Sails.js before v1.0.0-46 allows attackers to cause a denial of service with a single… CVSS 3.1HIGH 7.5
- TI-2016-08590 Improper access control in HackerOne sails node module CVSS 3.0MEDIUM 4.4
Sources
- CVE-2023-38504 · CVE Program
- CVE-2023-38504 · NVD
- FIRST EPSS
- GHSA-gpw9-fwm8-7rx7 · GitHub Advisory Database · CC BY 4.0
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