CVE-2026-105116 PUBLISHED

OpenAM before 16.1.3 Latent XSS in SAML Load-Balancer Cookie Bounce Page

Assigner: VulnCheck
Reserved: 03.10.2026 Published: 03.10.2026 Updated: 03.10.2026

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 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	Low
Attack Complexity	Low	Integrity	None	Integrity	Low
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	Active

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS Score: 6.1

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	Low
User Interaction	Required	Availability Impact	None

CVSS 3.1

Product Status

Vendor	OpenIdentityPlatform
Product	OpenAM
Versions	Default: unaffected affected from 0 to 16.1.3 (excl.) Version 16.1.3 is unaffected

Vendor	OpenIdentityPlatform
Product	OpenAM
Versions	Default: unaffected affected from 0 to 16.1.3 (excl.) Version 16.1.3 is unaffected

Vendor	OpenIdentityPlatform
Product	OpenAM
Versions	Default: unaffected affected from 0 to 16.1.3 (excl.) Version 16.1.3 is unaffected

Credits

santhreal reporter
maximthomas finder
tsujiguchitky finder

References

Problem Types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE