# CVE-2026-39361: OpenObserve has a SSRF Protection Bypass via IPv6 Bracket Notation in validate_enrichment_url

> Authenticated attackers can bypass SSRF protections using IPv6 bracket notation to access internal services and retrieve cloud IAM credentials.

- **Severity:** High 7.7 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Apr 2026
- **Updated:** 9 Apr 2026
- **Also known as:** GHSA-gcwf-3p7h-wm79

## What is CVE-2026-39361?

CVE-2026-39361 is a high-severity server-side request forgery vulnerability in openobserve, published on 7 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

OpenObserve is a cloud-native observability platform. In 0.70.3 and earlier, the validate_enrichment_url function in src/handler/http/request/enrichment_table/mod.rs fails to block IPv6 addresses because Rust's url crate returns them with surrounding brackets (e.g. "[::1]" not "::1"). An authenticated attacker can reach internal services blocked from external access. On cloud deployments this enables retrieval of IAM credentials via AWS IMDSv1 (169.254.169.254), GCP metadata, or Azure IMDS. On self-hosted deployments it allows probing internal network services.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-39361?

It affects 1 product.


Products: Openobserve Openobserve.

## How do I fix CVE-2026-39361?

No fix has been published for CVE-2026-39361 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-39361 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39361 exists.

## Other vulnerabilities in openobserve

- [CVE-2024-24830](https://insights.sbomify.com/CVE-2024-24830/): OpenObserve Privilege Escalation Vulnerability in Users API (critical 10.0)
- [CVE-2024-25106](https://insights.sbomify.com/CVE-2024-25106/): OpenObserve Unauthorized Access Vulnerability in Users API (critical 9.1)
- [CVE-2024-41808](https://insights.sbomify.com/CVE-2024-41808/): OpenObserve stored XSS vulnerability may lead to complete account takeover (high 8.8)
- [CVE-2024-41809](https://insights.sbomify.com/CVE-2024-41809/): OpenObserve Cross-site Scripting (XSS) vulnerability in `openobserve/web/src/views/MemberSubscription.vue` (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-39361 and fix it if it is affected.

What it is: CVE-2026-39361 is a high-severity server-side request forgery vulnerability in openobserve, published on 7 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39361 exists.

Affected product: openobserve. 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-2026-39361/ (Markdown: https://insights.sbomify.com/CVE-2026-39361/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-39361
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-39361
- OSV: https://osv.dev/vulnerability/CVE-2026-39361

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-39361/
Summaries are generated and may contain mistakes; the official description above is the record.