CVE-2026-97182 Details
Description
A security vulnerability has been detected in halo-dev Halo up to 2.25.4/2.26.1. Affected is an unknown function of the file application/src/main/java/run/halo/app/content/comment/ReplyNotificationSubscriptionHelper.java of the component SpEL Handler. Such manipulation leads to improper neutralization. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
A vulnerability allowing expression language injection has been identified in Halo versions through 2.25.4 and 2.26.1. The issue arises in the ReplyNotificationSubscriptionHelper.java file, within the SpEL Handler component. This vulnerability allows for improper neutralization of user input, which can be exploited remotely. When guest comments are enabled, the application creates reply-notification subscriptions for anonymous users, directly inserting unescaped email addresses into a Spring Expression Language (SpEL) expression. This exploitation can result in unauthorized email notifications being sent to the attacker, containing sensitive comment and reply information from unrelated users.
To address this vulnerability, it is recommended to escape single quotes in user-controlled data before inserting them into SpEL expressions. A more robust solution would be to avoid constructing executable expression text from user input altogether.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 24, 2026CISA-ADP
Assessed Sep 24, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://note-hxlab.wetolink.com/share/jTI97vuXfcCY | [email protected] | ExploitTechnical Analysis |
| https://vuldb.com/cve/CVE-2026-97182 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/907507 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/409299 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/409299/cti | [email protected] | AdvisoryPermission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-20 | Improper Input Validation | [email protected] |
| CWE-707 | Improper Neutralization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Halo | >= 2.15.0, <= 2.25.4 (semver) 2.25.4 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 24, 2026 | CVE Modified | CISA-ADP |
| Sep 24, 2026 | New CVE Received | [email protected] |