Answer in brief
CVE-2026-39852 records a High severity (CVSS 8.2) vulnerability in Quarkus authorization bypass via semicolon path normalization inconsistency. The current sources do not mark it as known exploited. The current feed maps quarkusio/quarkus (generic), io.quarkus:quarkus-vertx-http (maven), io.quarkus:quarkus-vertx-http (maven), io.quarkus:quarkus-vertx-http (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-39852 records a High severity (CVSS 8.2) vulnerability in Quarkus authorization bypass via semicolon path normalization inconsistency. The current sources do not mark it as known exploited. The current feed maps quarkusio/quarkus (generic), io.quarkus:quarkus-vertx-http (maven), io.quarkus:quarkus-vertx-http (maven), io.quarkus:quarkus-vertx-http (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps quarkusio/quarkus (generic), io.quarkus:quarkus-vertx-http (maven), io.quarkus:quarkus-vertx-http (maven), io.quarkus:quarkus-vertx-http (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| quarkusio/quarkusgeneric | < 3.20.6.1 || >= 3.27.3.0, < 3.27.3.1 || >= 3.34.0, < 3.34.7 || >= 3.35.0, < 3.35.2 | Not reported |
| io.quarkus:quarkus-vertx-httpmaven | <3.20.6.1 | 3.20.6.1 |
| io.quarkus:quarkus-vertx-httpmaven | >=3.21.0,<3.27.3.1 | 3.27.3.1 |
| io.quarkus:quarkus-vertx-httpmaven | >=3.30.0,<3.33.1.1 | 3.33.1.1 |
| io.quarkus:quarkus-vertx-httpmaven | >=3.34.0,<3.35.1.1 | 3.35.1.1 |
Published upstream
May 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 3, 2026
Quarkus is a Java framework for building cloud-native applications. In versions prior to 3.20.6.1, 3.27.3.1, 3.33.1.1, 3.35.1.1, 3.34.7, and 3.35.2, a path normalization inconsistency between the security layer and the routing layer allows unauthenticated or lower-privileged users to bypass HTTP path-based authorization policies. Quarkus's security layer performs authorization checks on the raw URL path which preserves matrix parameters (semicolons), while RESTEasy Reactive's routing layer strips matrix parameters before matching endpoints. An attacker can append a semicolon and arbitrary text to a request URL (e.g., /api/admin;anything) to bypass policies protecting /api/admin while still routing to the protected endpoint. This issue has been fixed in versions 3.20.6.1, 3.27.3.1, 3.33.1.1, 3.35.1.1, 3.34.7, and 3.35.2.
Quoted source text, attributed separately from HOL analysis.
CVSS is 8.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps quarkusio/quarkus (generic), io.quarkus:quarkus-vertx-http (maven), io.quarkus:quarkus-vertx-http (maven), io.quarkus:quarkus-vertx-http (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| quarkusio/quarkusgeneric | < 3.20.6.1 || >= 3.27.3.0, < 3.27.3.1 || >= 3.34.0, < 3.34.7 || >= 3.35.0, < 3.35.2 | Not reported |
| io.quarkus:quarkus-vertx-httpmaven | <3.20.6.1 | 3.20.6.1 |
| io.quarkus:quarkus-vertx-httpmaven | >=3.21.0,<3.27.3.1 | 3.27.3.1 |
| io.quarkus:quarkus-vertx-httpmaven | >=3.30.0,<3.33.1.1 | 3.33.1.1 |
| io.quarkus:quarkus-vertx-httpmaven | >=3.34.0,<3.35.1.1 | 3.35.1.1 |
Published upstream
May 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 3, 2026
Quarkus is a Java framework for building cloud-native applications. In versions prior to 3.20.6.1, 3.27.3.1, 3.33.1.1, 3.35.1.1, 3.34.7, and 3.35.2, a path normalization inconsistency between the security layer and the routing layer allows unauthenticated or lower-privileged users to bypass HTTP path-based authorization policies. Quarkus's security layer performs authorization checks on the raw URL path which preserves matrix parameters (semicolons), while RESTEasy Reactive's routing layer strips matrix parameters before matching endpoints. An attacker can append a semicolon and arbitrary text to a request URL (e.g., /api/admin;anything) to bypass policies protecting /api/admin while still routing to the protected endpoint. This issue has been fixed in versions 3.20.6.1, 3.27.3.1, 3.33.1.1, 3.35.1.1, 3.34.7, and 3.35.2.
Quoted source text, attributed separately from HOL analysis.