# CVE-2025-40545: SolarWinds Observability Self-Hosted Open Redirection Vulnerability

> An authenticated attacker can exploit an open redirection flaw in SolarWinds Observability Self-Hosted to redirect users to malicious sites.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Nov 2025
- **Updated:** 18 Nov 2025
- **Also known as:** GHSA-78p5-9w95-jc9j

## What is CVE-2025-40545?

CVE-2025-40545 is a medium-severity vulnerability in SolarWinds Observability Self-Hosted, published on 18 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

SolarWinds Observability Self-Hosted is susceptible to an open redirection vulnerability. The URL is not properly sanitized, and an attacker could manipulate the string to redirect a user to a malicious site. The attack complexity is high, and authentication is required.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2025-40545?

It affects 1 product.


Products: Solarwinds Observability Self-Hosted.

## How do I fix CVE-2025-40545?

No fix has been published for CVE-2025-40545 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-40545 being exploited?

There is no known exploitation of CVE-2025-40545 in the wild and no public exploit code.

## Other vulnerabilities in SolarWinds Observability Self-Hosted

- [CVE-2025-26397](https://insights.sbomify.com/CVE-2025-26397/): SolarWinds Observability Self-Hosted Deserialization of Untrusted Data Local Privilege Escalation Vulnerability (high 7.8)
- [CVE-2025-26395](https://insights.sbomify.com/CVE-2025-26395/): SolarWinds SWOSH DOM-based reflective XSS Vulnerability (high 7.1)
- [CVE-2026-28297](https://insights.sbomify.com/CVE-2026-28297/): SolarWinds Observability Self-Hosted Stored Cross-Site Scripting Vulnerability (medium 6.1)
- [CVE-2026-28298](https://insights.sbomify.com/CVE-2026-28298/): SolarWinds Observability Self-Hosted Stored Cross-Site Scripting Vulnerability (medium 5.9)
- [CVE-2025-26391](https://insights.sbomify.com/CVE-2025-26391/): SolarWinds Observability Self-Hosted XSS Vulnerability (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-40545 and fix it if it is affected.

What it is: CVE-2025-40545 is a medium-severity vulnerability in SolarWinds Observability Self-Hosted, published on 18 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-40545 in the wild and no public exploit code.

Affected product: SolarWinds Observability Self-Hosted. 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-2025-40545/ (Markdown: https://insights.sbomify.com/CVE-2025-40545/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-40545
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-40545
- OSV: https://osv.dev/vulnerability/CVE-2025-40545

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-40545/
Summaries are generated and may contain mistakes; the official description above is the record.