Answer in brief
CVE-2026-58301 records a Medium severity (CVSS 5.9) vulnerability in Apache Shiro: Server-side POST request may be steered to an alternate host. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/Apache Shiro (generic), Apache Software Foundation/Apache Shiro (generic), Apache Software Foundation/org.apache.shiro:shiro-jakata-ee (generic). 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 5.9. 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 Apache Software Foundation/Apache Shiro (generic), Apache Software Foundation/Apache Shiro (generic), Apache Software Foundation/org.apache.shiro:shiro-jakata-ee (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Apache Software Foundation/Apache Shirogeneric | 2.0.0-alpha-0 | Not reported |
| Apache Software Foundation/Apache Shirogeneric | >=2.0.0-alpha-0 <=3.0.0 | Not reported |
| Apache Software Foundation/org.apache.shiro:shiro-jakata-eegeneric | >=2.0.0-alpha-0 <=3.0.0 | Not reported |
Published upstream
Aug 31, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 31, 2026
When Apache Shiro is used with the Jakarta EE integration module, a low-privileged user can craft an HTTP request that causes the server to initiate a connection to an attacker-controlled URL and transmit attacker-controlled data. This vulnerability affects Apache Shiro versions 2.x through 3.0.0 only in deployments that use the Jakarta EE integration module. Mitigation: Upgrade to version 3.0.1 or later, which fixes the issue. + Alternatively, you can set the `org.apache.shiro.form-resubmit-host` (String) and `org.apache.shiro.form-resubmit-port` (Integer) system properties to restrict the host and port that Shiro will connect to when resubmitting a form.
Quoted source text, attributed separately from HOL analysis.