# Authorization Before Parsing and Canonicalization in jetty

Advisory record · `GHSA-v7ff-8wcx-gmc5`

- **Identifiers:** `GHSA-v7ff-8wcx-gmc5` · `CVE-2021-28164`
- **State:** Confirmed
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-200](https://cwe.mitre.org/data/definitions/200.html) · [CWE-551](https://cwe.mitre.org/data/definitions/551.html) · [CWE-863](https://cwe.mitre.org/data/definitions/863.html)
- **Tags:** [Information disclosure](https://agentprime.io/advisories/tag/info-disclosure.md) · [Broken access control](https://agentprime.io/advisories/tag/access-control.md) · [CWE-551](https://agentprime.io/advisories/tag/cwe-551.md)
- **Published:** 6 Apr 2021
- **Updated:** 8 Jul 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 6 Apr 2021, 17:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.eclipse.jetty:jetty-webapp` (Maven): affected `>=9.4.37, <9.4.39`; fixed in `9.4.39`

## 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 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`, from CNA (eclipse)

- **CISA KEV:** Not listed.
- **EPSS:** 0.82, the 99th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:19 UTC: First seen by agentprime
- 31 Oct 2026, 14:19 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-v7ff-8wcx-gmc5)

## Sources

- [GitHub Advisory Database: GHSA-v7ff-8wcx-gmc5](https://github.com/advisories/GHSA-v7ff-8wcx-gmc5)
- [OSV: GHSA-v7ff-8wcx-gmc5](https://osv.dev/vulnerability/GHSA-v7ff-8wcx-gmc5)
- <https://github.com/eclipse/jetty.project/security/advisories/GHSA-v7ff-8wcx-gmc5>
- <https://nvd.nist.gov/vuln/detail/CVE-2021-28164>
- <https://www.oracle.com/security-alerts/cpuoct2021.html>
- <https://www.oracle.com/security-alerts/cpujan2022.html>
- <https://www.oracle.com/security-alerts/cpuapr2022.html>
- <https://security.netapp.com/advisory/ntap-20210611-0006>
- <https://lists.apache.org/thread.html/rd7c8fb305a8637480dc943ba08424c8992dccad018cd1405eb2afe0e@%3Cdev.ignite.apache.org%3E>
- <https://lists.apache.org/thread.html/rd0471252aeb3384c3cfa6d131374646d4641b80dd313e7b476c47a9c@%3Cissues.solr.apache.org%3E>
- <https://lists.apache.org/thread.html/rcea249eb7a0d243f21696e4985de33f3780399bf7b31ea1f6d489b8b@%3Cissues.zookeeper.apache.org%3E>
- <https://lists.apache.org/thread.html/rbc075a4ac85e7a8e47420b7383f16ffa0af3b792b8423584735f369f@%3Cissues.solr.apache.org%3E>
- <https://lists.apache.org/thread.html/r9974f64723875052e02787b2a5eda689ac5247c71b827d455e5dc9a6@%3Cissues.solr.apache.org%3E>
- <https://lists.apache.org/thread.html/r90e7b4c42a96d74c219e448bee6a329ab0cd3205c44b63471d96c3ab@%3Cissues.zookeeper.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-v7ff-8wcx-gmc5>, 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-v7ff-8wcx-gmc5/>. Everything for agents: <https://agentprime.io/llms.txt>.