# CVE-2026-63158: Omnispace Agora Project < 26.10.0 Pass-the-Hash Authentication Bypass via Cookies

> Attackers can bypass authentication and impersonate users, including administrators, by replaying stolen password hashes in cookies.

- **Severity:** Critical 9.1 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Oct 2026
- **Updated:** 27 Oct 2026
- **Also known as:** GHSA-92qx-w82f-vmrj

## What is CVE-2026-63158?

CVE-2026-63158 is a critical authentication bypass vulnerability in Omnispace Agora Project, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Omnispace Agora Project before 26.10.0 contains an authentication bypass vulnerability that allows attackers possessing a user's stored bcrypt password hash to authenticate as that user without knowing the actual password, caused by the legacy AGORAP_LOG/AGORAP_PASS cookie mechanism treating the stored hash as a directly replayable bearer credential. Attackers can set the AGORAP_LOG/AGORAP_PASS cookies with a stolen password hash to impersonate any user, including administrators, and gain unauthorized access to the application.

Weakness: CWE-836 (Use of Password Hash Instead of Password for Authentication)

## Which versions are affected by CVE-2026-63158?


## How do I fix CVE-2026-63158?

No fix has been published for CVE-2026-63158 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-63158 being exploited?

There is no known exploitation of CVE-2026-63158 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-63158 and fix it if it is affected.

What it is: CVE-2026-63158 is a critical authentication bypass vulnerability in Omnispace Agora Project, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-63158 in the wild and no public exploit code.

Affected product: Omnispace Agora Project. 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-2026-63158/ (Markdown: https://insights.sbomify.com/CVE-2026-63158/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-63158
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-63158
- OSV: https://osv.dev/vulnerability/CVE-2026-63158

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-63158/
Summaries are generated and may contain mistakes; the official description above is the record.