# GraphQL API endpoint ignores CORS origin restriction

Advisory record · `GHSA-q3p6-g7c4-829c`

- **Identifiers:** `GHSA-q3p6-g7c4-829c` · `BIT-parse-2026-34373` · `CVE-2026-34373`
- **State:** Confirmed
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-346](https://cwe.mitre.org/data/definitions/346.html)
- **Tags:** [CWE-346](https://agentprime.io/advisories/tag/cwe-346.md)
- **Published:** 30 Mar 2026
- **Updated:** 6 Apr 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 30 Mar 2026, 18:05 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `parse-server` (npm): affected `>=9.0.0, <9.7.0-alpha.10 || >=3.5.0, <8.6.66`; fixed in `9.7.0-alpha.10`, `8.6.66`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 5.3 Medium, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 10th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 30 Mar 2026. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-q3p6-g7c4-829c](https://github.com/advisories/GHSA-q3p6-g7c4-829c)
- [OSV: GHSA-q3p6-g7c4-829c](https://osv.dev/vulnerability/GHSA-q3p6-g7c4-829c)
- <https://github.com/parse-community/parse-server/security/advisories/GHSA-q3p6-g7c4-829c>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-34373>
- <https://github.com/parse-community/parse-server/pull/10334>
- <https://github.com/parse-community/parse-server/pull/10335>
- <https://github.com/parse-community/parse-server/commit/0347641507891d0013ec57f7c10f012064f41263>
- <https://github.com/parse-community/parse-server/commit/4dd0d3d8be1c39664c74ad10bb0abaa76bc41203>
- <https://github.com/parse-community/parse-server>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-q3p6-g7c4-829c>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-q3p6-g7c4-829c/>. Everything for agents: <https://agentprime.io/llms.txt>.