# CVE-2026-105114: OpenAM reflected XSS in OAuth2 authorization error page

Source: https://junglewise.ai/threats/cve-2026-105114-openam-before-16-1-3-contains-a-reflected-cross-site-scripting  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-03. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-105114 · Severity: medium · CVSS 6.1 · Published 2026-10-03

OpenAM is an identity and access management platform that handles OAuth2 authentication for applications. A reflected cross-site scripting vulnerability in the OAuth2 error page allows attackers to inject malicious scripts by sending victims a crafted link. If a victim visits the link while logged in, the attacker can steal session tokens, manipulate the page, or redirect users to phishing sites.

Technologies: [Open Identity Platform OpenAM](https://junglewise.ai/threats/technologies/openam). Vendors: [Open Identity Platform](https://junglewise.ai/threats/vendors/open-identity-platform).

## Quick answers

**Is CVE-2026-105114 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-105114 being exploited in the wild.

**How severe is CVE-2026-105114?** Medium severity, with a CVSS score of 6.1, published 3 October 2026.

**Which products and versions are affected?** Open Identity Platform OpenAM before 16.1.3.

**Is there a fix for CVE-2026-105114?** Yes: fixed in 16.1.3. Until then: Deploy a Content-Security-Policy header that disallows inline scripts to prevent payload execution even if reflection is not blocked. Restrict access to /oauth2/authorize at the reverse proxy to networks that actually need it, or apply a web application firewall rule rejecting requests with < or > characters in the query string. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-105114 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-105114?** Check whether you run Open Identity Platform OpenAM at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 16.1.3

Deploy a Content-Security-Policy header that disallows inline scripts to prevent payload execution even if reflection is not blocked. Restrict access to /oauth2/authorize at the reverse proxy to networks that actually need it, or apply a web application firewall rule rejecting requests with < or > characters in the query string.

## Technical details

The vulnerability is a reflected XSS (CWE-79) in the OAuth2 /authorize endpoint's error page, where user-supplied parameters are inserted into the DOM without HTML encoding. An unauthenticated attacker can craft a malicious link with repeated or specially-crafted parameters that break out of the HTML context and execute arbitrary JavaScript in the OpenAM origin. The attacker requires user interaction (victim clicking a link) but no special privileges or client configuration beyond a registered OAuth2 client, which is standard for deployments using OAuth2.

## Affected products

- Open Identity Platform OpenAM before 16.1.3

## Timeline

- 2026-09-18: disclosed
- 2026-09-18: patched: OpenAM 16.1.3 released
- 2026-10-03: advisory

## References

- [https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-3m32-w9x3-vvq8](https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-3m32-w9x3-vvq8)
- [https://www.vulncheck.com/advisories/openam-before-16.1.3-reflected-xss-via-oauth2-authorization-error-page](https://www.vulncheck.com/advisories/openam-before-16.1.3-reflected-xss-via-oauth2-authorization-error-page)

## Related threats

- [OpenAM default credentials authentication bypass in built-in identities](https://junglewise.ai/threats/cve-2026-123553-openam-before-16-1-4-ships-built-in-identities-in-the-top-level)
- [OpenAM unauthenticated session token disclosure via WebSocket](https://junglewise.ai/threats/cve-2026-123551-openam-from-14-0-0-before-16-1-4-contains-an-information)
- [OpenAM SAML v2.0 service provider authentication bypass](https://junglewise.ai/threats/cve-2026-123550-openam-before-16-1-4-contains-an-authentication-bypass)
- [OpenAM self-registration attribute list enforcement bypass](https://junglewise.ai/threats/cve-2026-123549-openam-before-16-1-4-fails-to-enforce-the-valid-creation)
- [OpenAM open redirect via SAML RelayState](https://junglewise.ai/threats/cve-2026-123547-openam-before-16-1-4-contains-an-open-redirect-vulnerability)