# Apache Struts vulnerable to remote arbitrary command execution due to improper input validation Advisory record · `GHSA-j77q-2qqg-6989` - **Identifiers:** `GHSA-j77q-2qqg-6989` · `CVE-2017-5638` - **State:** Confirmed - **Severity:** CVSS 10.0 Critical - **Critical:** Yes: KEV, CVSS 9+, CVSS 7+ and EPSS - **Weakness (CWE):** [CWE-20](https://cwe.mitre.org/data/definitions/20.html) · [CWE-755](https://cwe.mitre.org/data/definitions/755.html) - **Tags:** [CWE-20](https://agentprime.io/advisories/tag/cwe-20.md) · [CWE-755](https://agentprime.io/advisories/tag/cwe-755.md) - **Published:** 18 Oct 2018 - **Updated:** 22 Oct 2025 - **Reviewed by a person:** No Published by the GitHub Advisory Database at 18 Oct 2018, 19:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. ## Critical Critical, because: - In CISA’s KEV catalogue since 3 Nov 2021: it is known to be exploited. - CVSS score 10.0: 9.0 or more. - CVSS score 10.0 (7.0 or more) and EPSS 1.00 (0.1 or more): a high score and a real chance of exploitation in the next 30 days. How we decide what’s critical: ## Affected packages - `org.apache.struts:struts2-core` (Maven): affected `>=2.3.0, <2.3.32 || >=2.5.0, <2.5.10.1`; fixed in `2.3.32`, `2.5.10.1` ## Machine-written summary Summary written by Claude Haiku from the source advisory. Not reviewed by a person. > Apache Struts2 core versions from 2.3.0 before 2.3.32 and from 2.5.0 before 2.5.10.1 are vulnerable. A remote attacker can send a crafted Content-Type, Content-Disposition, or Content-Length HTTP header during a file upload using the Jakarta Multipart parser and execute arbitrary commands on the server. Upgrade struts2-core to 2.3.32, 2.5.10.1, or a later release. Written 7 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 - 10.0 Critical, CVSS 3.0: `CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H`, from GitHub Advisory Database - **CISA KEV:** Listed since 3 Nov 2021: known to be exploited. CISA reports use in ransomware campaigns. - **EPSS:** 1.00, the 99th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline - 31 Oct 2026, 15:10 UTC: First seen by agentprime - 31 Oct 2026, 15:10 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-j77q-2qqg-6989) ## Sources - [GitHub Advisory Database: GHSA-j77q-2qqg-6989](https://github.com/advisories/GHSA-j77q-2qqg-6989) - [OSV: GHSA-j77q-2qqg-6989](https://osv.dev/vulnerability/GHSA-j77q-2qqg-6989) - - - - - - - - - - - - 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 (), 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: - In a browser: reads your lockfile in the browser, never uploading it. - Whether it touches your code, with file and line: the Claude Code plugin, - As JSON: , or `POST https://api.agentprime.io/v1/match` with your packages () --- The web page: . Everything for agents: .