# xml-rs vulnerable to denial of service via invalid token in XML document

Advisory record · `GHSA-7gf7-jv65-wjmh`

- **Identifiers:** `GHSA-7gf7-jv65-wjmh` · `CVE-2023-34411`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **Weakness (CWE):** [CWE-611](https://cwe.mitre.org/data/definitions/611.html) · [CWE-617](https://cwe.mitre.org/data/definitions/617.html)
- **Tags:** [XML external entities (XXE)](https://agentprime.io/advisories/tag/xxe.md) · [Denial of service](https://agentprime.io/advisories/tag/dos.md)
- **Published:** 5 Jun 2023
- **Updated:** 8 Jan 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 5 Jun 2023, 06:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `xml-rs` (crates.io): affected `>=0.8.9, <0.8.14`; fixed in `0.8.14`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The xml-rs package, versions 0.8.9 up to but not including 0.8.14, is vulnerable to a denial of service. An attacker who can supply an XML document to an application that parses it with xml-rs can trigger a panic by sending a malformed invalid token beginning with "\<!". Upgrade xml-rs to version 0.8.14 or later.

Written 8 Nov 2026.

## 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

- 7.5 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.012, the 67th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:20 UTC: First seen by agentprime
- 31 Oct 2026, 15:20 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-7gf7-jv65-wjmh)

## Sources

- [GitHub Advisory Database: GHSA-7gf7-jv65-wjmh](https://github.com/advisories/GHSA-7gf7-jv65-wjmh)
- [OSV: GHSA-7gf7-jv65-wjmh](https://osv.dev/vulnerability/GHSA-7gf7-jv65-wjmh)
- <https://nvd.nist.gov/vuln/detail/CVE-2023-34411>
- <https://github.com/netvl/xml-rs/pull/226>
- <https://github.com/00xc/xml-rs/commit/0f084d45aa53e4a27476961785f59f2bd7d59a9f>
- <https://github.com/netvl/xml-rs/commit/014d808be900c85a0afc5ccdfe668be040d175aa>
- <https://github.com/netvl/xml-rs/commit/c09549a187e62d39d40467f129e64abf32efc35c>
- <https://github.com/netvl/xml-rs>
- <https://github.com/netvl/xml-rs/compare/0.8.13...0.8.14>

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-7gf7-jv65-wjmh>, 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-7gf7-jv65-wjmh/>. Everything for agents: <https://agentprime.io/llms.txt>.