# Quarkus has Authentication/Authorization bypasses Advisory record · `GHSA-rc95-pcm8-65v9` - **Identifiers:** `GHSA-rc95-pcm8-65v9` · `CVE-2026-39852` - **State:** Confirmed - **Severity:** CVSS 8.8 High - **Critical:** No - **Weakness (CWE):** [CWE-287](https://cwe.mitre.org/data/definitions/287.html) · [CWE-551](https://cwe.mitre.org/data/definitions/551.html) · [CWE-863](https://cwe.mitre.org/data/definitions/863.html) - **Tags:** [Authentication bypass](https://agentprime.io/advisories/tag/auth-bypass.md) · [Broken access control](https://agentprime.io/advisories/tag/access-control.md) · [CWE-551](https://agentprime.io/advisories/tag/cwe-551.md) - **Published:** 4 May 2026 - **Updated:** 10 Sept 2026 - **Reviewed by a person:** No Published by the GitHub Advisory Database at 4 May 2026, 17:20 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. ## Affected packages - `io.quarkus:quarkus-vertx-http` (Maven): affected `<3.20.6.1 || >=3.21.0, <3.27.3.1 || >=3.30.0, <3.33.1.1 || >=3.34.0, <3.35.1.1`; fixed in `3.20.6.1`, `3.27.3.1`, `3.33.1.1`, `3.35.1.1` ## Machine-written summary Summary written by Claude Haiku from the source advisory. Not reviewed by a person. > Quarkus (io.quarkus:quarkus-vertx-http) versions before 3.20.6.1, from 3.21.0 before 3.27.3.1, from 3.30.0 before 3.33.1.1, and from 3.34.0 before 3.35.1.1 are affected. An unauthenticated or lower-privileged user can bypass HTTP path-based authorization by appending a semicolon and arbitrary text to a request URL, which can reach protected endpoints. Upgrade to 3.20.6.1, 3.27.3.1, 3.33.1.1, or 3.35.1.1, matching your release line. Written 2 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 - 8.8 High, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N`, from CNA (GitHub_M) - **CISA KEV:** Not listed. - **EPSS:** 0.0071, the 53rd percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline - 31 Oct 2026, 14:17 UTC: First seen by agentprime - 31 Oct 2026, 14:17 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-rc95-pcm8-65v9) ## Sources - [GitHub Advisory Database: GHSA-rc95-pcm8-65v9](https://github.com/advisories/GHSA-rc95-pcm8-65v9) - [OSV: GHSA-rc95-pcm8-65v9](https://osv.dev/vulnerability/GHSA-rc95-pcm8-65v9) - - - - - - - - - - - - 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: .