CVE-2026-105116 OpenAM before 16.1.3 Latent XSS in SAML Load-Balancer Cookie Bounce Page
OpenAM contains a latent XSS vulnerability in its SAML cookie bounce page, requiring specific configuration and bypassing an HTTP 500 error to execute scripts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-105116?
CVE-2026-105116 is a medium-severity cross-site scripting vulnerability in OpenIdentityPlatform OpenAM, published on 3 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-105116?
How do I fix CVE-2026-105116?
No fix has been published for CVE-2026-105116 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-105116 being exploited?
There is no known exploitation of CVE-2026-105116 in the wild and no public exploit code.
Sources
Also known as GHSA-v796-mg6j-9c5m, GHSA-wxcf-pvf2-p2h6.