# CVE-2023-50771: Open redirect vulnerability in Jenkins OpenId Connect Authentication Plugin

> Attackers can exploit improper redirect validation in the Jenkins OpenId Connect plugin to conduct phishing attacks against users.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 13 Dec 2023
- **Updated:** 13 Feb 2025
- **Also known as:** GHSA-9qv8-7jfq-73j2

## What is CVE-2023-50771?

CVE-2023-50771 is a medium-severity vulnerability in Jenkins OpenId Connect Authentication Plugin, published on 13 Dec 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Jenkins OpenId Connect Authentication Plugin 2.6 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins, allowing attackers to perform phishing attacks.

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

## Which versions are affected by CVE-2023-50771?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:oic-auth. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.jenkins-ci.plugins:oic-auth` | Maven | All versions | 3.0 |
| `org.jenkins-ci.plugins:oic-auth` | Maven | All versions | 3.0 |

Products: Jenkins Openid Connect Authentication.

## How do I fix CVE-2023-50771?

Upgrade org.jenkins-ci.plugins:oic-auth to 3.0 or later.

## Is CVE-2023-50771 being exploited?

There is no known exploitation of CVE-2023-50771 in the wild and no public exploit code.

## Other vulnerabilities in Jenkins OpenId Connect Authentication Plugin

- [CVE-2025-24399](https://insights.sbomify.com/CVE-2025-24399/): Improper handling of case sensitivity in Jenkins OpenId Connect Authentication Plugin (high 8.8)
- [CVE-2024-52553](https://insights.sbomify.com/CVE-2024-52553/): Session fixation vulnerability in Jenkins OpenId Connect Authentication Plugin (high 8.8)
- [CVE-2023-24424](https://insights.sbomify.com/CVE-2023-24424/): Session fixation vulnerability in Jenkins OpenId Connect Authentication Plugin (high 8.8)
- [CVE-2024-47806](https://insights.sbomify.com/CVE-2024-47806/): Jenkins OpenId Connect Authentication Plugin lacks audience claim validation (high 8.1)
- [CVE-2024-47807](https://insights.sbomify.com/CVE-2024-47807/): Jenkins OpenId Connect Authentication Plugin lacks issuer claim validation (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-50771 and fix it if it is affected.

What it is: CVE-2023-50771 is a medium-severity vulnerability in Jenkins OpenId Connect Authentication Plugin, published on 13 Dec 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-50771 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.jenkins-ci.plugins:oic-auth (Maven): affected all versions; fixed in 3.0
- org.jenkins-ci.plugins:oic-auth (Maven): affected all versions; fixed in 3.0

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-2023-50771/ (Markdown: https://insights.sbomify.com/CVE-2023-50771/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-50771
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-50771
- OSV: https://osv.dev/vulnerability/CVE-2023-50771

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-50771/
Summaries are generated and may contain mistakes; the official description above is the record.