# Rust Web Push is vulnerable to a DoS attack via a large integer in a Content-Length header

Advisory record · `GHSA-287x-9rff-qvcg`

- **Identifiers:** `GHSA-287x-9rff-qvcg` · `CVE-2025-53604` · `GHSA-fc83-9jwq-gc2m` · `RUSTSEC-2025-0015`
- **State:** Confirmed
- **Severity:** CVSS 4.0 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-130](https://cwe.mitre.org/data/definitions/130.html)
- **Tags:** [CWE-130](https://agentprime.io/advisories/tag/cwe-130.md)
- **Published:** 5 Jul 2025
- **Updated:** 28 Oct 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 5 Jul 2025, 03:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `web-push` (crates.io): affected `<0.10.4`; fixed in `0.10.4`

## 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

- 4.0 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L`, from CNA (mitre)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0041, the 35th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:19 UTC: First seen by agentprime
- 31 Oct 2026, 15:19 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-287x-9rff-qvcg)

## Sources

- [GitHub Advisory Database: GHSA-287x-9rff-qvcg](https://github.com/advisories/GHSA-287x-9rff-qvcg)
- [OSV: GHSA-287x-9rff-qvcg](https://osv.dev/vulnerability/GHSA-287x-9rff-qvcg)
- <https://nvd.nist.gov/vuln/detail/CVE-2025-53604>
- <https://github.com/pimeys/rust-web-push/pull/68>
- <https://github.com/pimeys/rust-web-push/commit/8447ed86bf3f24629abd7022b94104bf3cd64453>
- <https://crates.io/crates/web-push>
- <https://github.com/pimeys/rust-web-push>
- <https://rustsec.org/advisories/RUSTSEC-2025-0015.html>

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-287x-9rff-qvcg>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

---

The web page: <https://agentprime.io/advisories/GHSA-287x-9rff-qvcg/>. Everything for agents: <https://agentprime.io/llms.txt>.