# CVE-2026-62253: Homer: Complete Authentication Bypass When coordinator.jwt.secret Is Empty (Default)

> Attackers can access all protected API endpoints without authentication on default installations due to an empty JWT secret, exposing sensitive telecom data.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 7 Oct 2026
- **Updated:** 10 Oct 2026
- **Also known as:** GHSA-rqcc-94gv-wjm9, GO-2026-6673

## What is CVE-2026-62253?

CVE-2026-62253 is a critical authentication bypass vulnerability in sipcapture homer, published on 7 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Homer is open source telecom observability software. Prior to version 11.0.283, both JWT middleware functions (`JWTMiddleware` and `JWTMiddlewareV4`) immediately return `next(c)` when `jwtSecret == ""`. The JWT secret defaults to an empty string. On a default installation, all protected API endpoints under `/api/v1`, `/api/v3`, and `/api/v4` are completely unauthenticated. Version 11.0.283 patches the issue.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-62253?

3 open source packages ship an affected version, including github.com/sipcapture/homer-app.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/sipcapture/homer-app` | Go | All versions | None |
| `github.com/sipcapture/homer-app` | Go | All versions | 0.0.0-20260625093330-5e90809657c9 |
| `github.com/sipcapture/homer-app` | Go | All versions | 0.0.0-20260625093330-5e90809657c9 |

## How do I fix CVE-2026-62253?

Upgrade github.com/sipcapture/homer-app to 0.0.0-20260625093330-5e90809657c9 or later.

## Is CVE-2026-62253 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-62253 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-62253 and fix it if it is affected.

What it is: CVE-2026-62253 is a critical authentication bypass vulnerability in sipcapture homer, published on 7 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-62253 exists.

Affected packages and fixed versions:
- github.com/sipcapture/homer-app (Go): affected all versions; no fix listed
- github.com/sipcapture/homer-app (Go): affected all versions; fixed in 0.0.0-20260625093330-5e90809657c9
- github.com/sipcapture/homer-app (Go): affected all versions; fixed in 0.0.0-20260625093330-5e90809657c9

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-2026-62253/ (Markdown: https://insights.sbomify.com/CVE-2026-62253/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-62253
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-62253
- OSV: https://osv.dev/vulnerability/CVE-2026-62253

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-62253/
Summaries are generated and may contain mistakes; the official description above is the record.