# 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.

- **Severity:** Medium 5.1 (`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`)
- **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 available:** No
- **Published:** 3 Oct 2026
- **Updated:** 5 Oct 2026
- **Also known as:** GHSA-v796-mg6j-9c5m, GHSA-wxcf-pvf2-p2h6

## 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 (Improper Neutralization of Input During Web Page Generation)

## 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.

## Is CVE-2026-105116 being exploited?

There is no known exploitation of CVE-2026-105116 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-105116 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2026-105116 in the wild and no public exploit code.

Affected product: OpenIdentityPlatform OpenAM. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-105116/ (Markdown: https://insights.sbomify.com/CVE-2026-105116/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-105116
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-105116
- OSV: https://osv.dev/vulnerability/CVE-2026-105116

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-105116/
Summaries are generated and may contain mistakes; the official description above is the record.