# DotNetZip Directory Traversal vulnerability

Advisory record · `GHSA-xhg6-9j5j-w4vf`

- **Identifiers:** `GHSA-xhg6-9j5j-w4vf` · `CVE-2024-48510`
- **State:** Confirmed
- **Severity:** CVSS 9.8 Critical
- **Critical:** Yes: CVSS 9+
- **Weakness (CWE):** [CWE-22](https://cwe.mitre.org/data/definitions/22.html)
- **Tags:** [Path traversal](https://agentprime.io/advisories/tag/path-traversal.md)
- **Published:** 13 Nov 2024
- **Updated:** 25 Nov 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 13 Nov 2024, 15:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 9.8: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `DotNetZip` (NuGet): affected `>=1.10.1, <=1.16.0`; no fixed version yet
- `ProDotNetZip` (NuGet): affected `<1.19.0`; fixed in `1.19.0`

## Machine-written summary

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

> DotNetZip versions 1.10.1 through 1.16.0 have a directory traversal flaw in archive entry extraction that can allow a remote attacker to execute arbitrary code. The source gives few details on the conditions required. No fixed DotNetZip version is listed; for ProDotNetZip, versions before 1.19.0 are affected, so upgrade to 1.19.0.

Written 9 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.020, the 81st percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:23 UTC: First seen by agentprime
- 31 Oct 2026, 15:23 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-xhg6-9j5j-w4vf)

## Sources

- [GitHub Advisory Database: GHSA-xhg6-9j5j-w4vf](https://github.com/advisories/GHSA-xhg6-9j5j-w4vf)
- [OSV: GHSA-xhg6-9j5j-w4vf](https://osv.dev/vulnerability/GHSA-xhg6-9j5j-w4vf)
- <https://nvd.nist.gov/vuln/detail/CVE-2024-48510>
- <https://github.com/mihula/ProDotNetZip/pull/21>
- <https://github.com/mihula/ProDotNetZip/commit/18486ad6d13742a07a6755ef6edf60d7458f1854>
- <https://gist.github.com/thomas-chauchefoin-bentley-systems/855218959116f870f08857cce2aec731>
- <https://github.com/haf/DotNetZip.Semverd>
- <https://github.com/haf/DotNetZip.Semverd/blob/e487179b33a9a0f2631eed5fb04d2c952ea5377a/src/Zip.Shared/ZipEntry.Extract.cs#L1365-L1410>
- <https://www.nuget.org/packages/DotNetZip>

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-xhg6-9j5j-w4vf>, 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-xhg6-9j5j-w4vf/>. Everything for agents: <https://agentprime.io/llms.txt>.