CVE-2026-105116: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in OpenIdentityPlatform OpenAM
OpenAM before 16.1.3 contains a latent cross-site scripting defect that places the SAML message, relay state and target URL unencoded into the load-balancer cookie bounce auto-submit page. If reachable with cookieHashRedirectEnabled set, crafted requests could execute script in the OpenAM origin, though an unrelated HTTP 500 failure prevents exploitation in released versions.
AI Analysis
Technical Summary
CVE-2026-105116 describes a cross-site scripting vulnerability in OpenIdentityPlatform's OpenAM product prior to version 16.1.3. The vulnerability arises because the SAML message, relay state, and target URL are inserted without encoding into the load-balancer cookie bounce auto-submit page. If the configuration option cookieHashRedirectEnabled is set, crafted requests could execute arbitrary script code in the OpenAM origin context. Despite this, an unrelated HTTP 500 error currently blocks exploitation in released versions, making the vulnerability latent.
Potential Impact
The vulnerability could allow an attacker to execute arbitrary scripts in the context of the OpenAM origin, potentially leading to session hijacking or other client-side attacks if exploited. However, due to an unrelated HTTP 500 failure in released versions, practical exploitation is currently prevented. No known exploits are reported in the wild.
Mitigation Recommendations
A fixed version 16.1.3 or later addresses this vulnerability. Users should upgrade to OpenAM 16.1.3 or newer to remediate this issue. Until then, be aware that exploitation is currently blocked by an unrelated HTTP 500 error, but this may change if the error is resolved without addressing the XSS flaw.
CVE-2026-105116: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in OpenIdentityPlatform OpenAM
Description
OpenAM before 16.1.3 contains a latent cross-site scripting defect that places the SAML message, relay state and target URL unencoded into the load-balancer cookie bounce auto-submit page. If reachable with cookieHashRedirectEnabled set, crafted requests could execute script in the OpenAM origin, though an unrelated HTTP 500 failure prevents exploitation in released versions.
CVSS v4.0
Score 5.1medium
Affected software
OpenIdentityPlatform
OpenAM
pkg:github/openidentityplatform/OpenAMRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-105116 describes a cross-site scripting vulnerability in OpenIdentityPlatform's OpenAM product prior to version 16.1.3. The vulnerability arises because the SAML message, relay state, and target URL are inserted without encoding into the load-balancer cookie bounce auto-submit page. If the configuration option cookieHashRedirectEnabled is set, crafted requests could execute arbitrary script code in the OpenAM origin context. Despite this, an unrelated HTTP 500 error currently blocks exploitation in released versions, making the vulnerability latent.
Potential Impact
The vulnerability could allow an attacker to execute arbitrary scripts in the context of the OpenAM origin, potentially leading to session hijacking or other client-side attacks if exploited. However, due to an unrelated HTTP 500 failure in released versions, practical exploitation is currently prevented. No known exploits are reported in the wild.
Mitigation Recommendations
A fixed version 16.1.3 or later addresses this vulnerability. Users should upgrade to OpenAM 16.1.3 or newer to remediate this issue. Until then, be aware that exploitation is currently blocked by an unrelated HTTP 500 error, but this may change if the error is resolved without addressing the XSS flaw.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-03T12:04:36.964Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac10acea43b0b3b89c6cf66
Added to database: 10/03/2026, 14:01:50 UTC
Last enriched: 10/03/2026, 14:16:31 UTC
Last updated: 10/04/2026, 03:46:22 UTC
Views: 14
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.