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Advisory record · GHSA-rc95-pcm8-65v9

Quarkus has Authentication/Authorization bypasses

CVSS 8.8 HighEPSS 0.0071 · 53rd percentile

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.

PackageEcosystemAffectedFixed in
io.quarkus:quarkus-vertx-httpMaven<3.20.6.1 || >=3.21.0, <3.27.3.1 || >=3.30.0, <3.33.1.1 || >=3.34.0, <3.35.1.13.20.6.1, 3.27.3.1, 3.33.1.1, 3.35.1.1
Identifiers
GHSA-rc95-pcm8-65v9 · CVE-2026-39852
Weakness (CWE)
CWE-287 · CWE-551 · CWE-863
Tags
Published
4 May 2026
Updated
10 Sept 2026

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

ScoreRatingCVSSVectorSource
8.8 High 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 CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0071, the 53rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:17 UTC First seen by agentprime
  2. 31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

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.