# Session fixation in the CLI login flow allows an unauthenticated attacker to obtain a user's API token

CVE record · `CVE-2026-119446`

- **Identifiers:** `CVE-2026-119446`
- **State:** Confirmed
- **Severity:** CVSS 9.4 Critical
- **Critical:** Yes: CVSS 9+
- **CNA:** EEF
- **Weakness (CWE):** [CWE-384](https://cwe.mitre.org/data/definitions/384.html)
- **Tags:** [Authentication bypass](https://agentprime.io/advisories/tag/auth-bypass.md)
- **Technologies:** [nerves-hub nerves_hub_web](https://agentprime.io/advisories/technology/nerves-hub-nerves-hub-web.md)
- **Published:** 10 Nov 2026
- **Updated:** 12 Nov 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: EEF) at 10 Nov 2026, 10:44 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Critical

Critical, because:

- CVSS score 9.4: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected products, as the CNA wrote them

- Vendor: nerves-hub. Product: nerves_hub_web.
  - affected: `2.5.0 to before 2.5.3` (other)
  - Other versions: unaffected
  - Package name: `nerves-hub/nerves-hub`
  - Collection: `https://ghcr.io`
  - purl: `pkg:oci/nerves-hub?repository_url=ghcr.io%2Fnerves-hub%2Fnerves-hub`
- Vendor: nerves-hub. Product: nerves_hub_web.
  - affected: `2.5.0 to before 2.5.3` (semver)
  - Other versions: unaffected
  - Package name: `nerves_hub`
  - purl: `pkg:otp/nerves_hub?repository_url=https:%2F%2Fgithub.com%2Fnerves-hub%2Fnerves_hub_web&vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Fnerves-hub%2Fnerves_hub_web.git`
- Vendor: nerves-hub. Product: nerves_hub_web.
  - affected: `e6bf11a812d7aa8b69d854ba8ef02d65516f5564 to before 3131f1701194b581ab4b3e5e9d81194fc9c83508` (git)
  - Other versions: unaffected
  - Package name: `nerves-hub/nerves_hub_web`
  - Collection: `https://github.com`
  - purl: `pkg:github/nerves-hub/nerves_hub_web`

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 9.4 Critical, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`, from CNA (EEF)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0047, the 41st percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 10 Nov 2026, 10:44 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2026-119446)
- 10 Nov 2026, 10:55 UTC: First seen by agentprime
- 10 Nov 2026, 11:16 UTC: [Confirmed by NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-119446)

## Sources

- [CVE List: CVE-2026-119446](https://www.cve.org/CVERecord?id=CVE-2026-119446)
- [NVD: CVE-2026-119446](https://nvd.nist.gov/vuln/detail/CVE-2026-119446)

### References from the CNA

- <https://github.com/nerves-hub/nerves_hub_web/security/advisories/GHSA-9vr9-463q-46qp> (vendor-advisory, related)
- <https://cna.erlef.org/cves/CVE-2026-119446.html> (related)
- <https://osv.dev/vulnerability/EEF-CVE-2026-119446> (related)
- <https://github.com/nerves-hub/nerves_hub_web/commit/e6bf11a812d7aa8b69d854ba8ef02d65516f5564> (related)
- <https://github.com/nerves-hub/nerves_hub_web/commit/3131f1701194b581ab4b3e5e9d81194fc9c83508> (patch)

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-119446>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-119446/>. Everything for agents: <https://agentprime.io/llms.txt>.