# Improper Verification of Source of a Communication Channel in Apache Tomcat

Advisory record · `GHSA-9hjv-9h75-xmpp`

- **Identifiers:** `GHSA-9hjv-9h75-xmpp` · `CVE-2016-0763`
- **State:** Confirmed
- **Severity:** CVSS 6.3 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-940](https://cwe.mitre.org/data/definitions/940.html)
- **Tags:** [CWE-940](https://agentprime.io/advisories/tag/cwe-940.md)
- **Published:** 14 May 2022
- **Updated:** 11 Mar 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 14 May 2022, 01:18 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.apache.tomcat:tomcat` (Maven): affected `>=7.0.0, <7.0.68 || >=8.0.0, <8.0.32 || >=9.0.0M1, <9.0.0.M3`; fixed in `7.0.68`, `8.0.32`, `9.0.0.M3`

## 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

- 6.3 Medium, CVSS 3.0: `CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.11, the 95th percentile, on 6 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 14 May 2022. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-9hjv-9h75-xmpp](https://github.com/advisories/GHSA-9hjv-9h75-xmpp)
- [OSV: GHSA-9hjv-9h75-xmpp](https://osv.dev/vulnerability/GHSA-9hjv-9h75-xmpp)
- <https://nvd.nist.gov/vuln/detail/CVE-2016-0763>
- <https://github.com/apache/tomcat/commit/76ebc9007567c8326217dd94844540e1e27d8468>
- <https://github.com/apache/tomcat/commit/c08641da04d31f730b56b8675301e55db97dfe88>
- <https://github.com/apache/tomcat80/commit/0531f7aeff1999d362e0a68512a3517f2cf1a6ae>
- <https://web.archive.org/web/20160404202803/http://www.securitytracker.com/id/1035069>
- <https://web.archive.org/web/20160314101138/http://www.securityfocus.com/bid/83326>
- <https://security.netapp.com/advisory/ntap-20180531-0001>
- <https://security.gentoo.org/glsa/201705-09>
- <https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c@%3Cdev.tomcat.apache.org%3E>
- <https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E>
- <https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551@%3Cdev.tomcat.apache.org%3E>
- <https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E>

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-9hjv-9h75-xmpp>, 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-9hjv-9h75-xmpp/>. Everything for agents: <https://agentprime.io/llms.txt>.