# CVE-2026-83419: Information disclosure in Oracle Communications Cloud Native Core Security Edge Protection Proxy

> Low-privileged attackers can read and modify data in Oracle Communications Cloud Native Core SEPP via HTTP.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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:** 15 Sep 2026
- **Updated:** 22 Sep 2026
- **Also known as:** GHSA-5w4h-j5wf-w79f

## What is CVE-2026-83419?

CVE-2026-83419 is a medium-severity vulnerability in Oracle Communications Cloud Native Core Security Edge Protection Proxy, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Vulnerability in the Oracle Communications Cloud Native Core Security Edge Protection Proxy product of Oracle Communications (component: SEPP).  Supported versions that are affected are 26.1.200 and  25.2.201. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Communications Cloud Native Core Security Edge Protection Proxy.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Oracle Communications Cloud Native Core Security Edge Protection Proxy accessible data as well as  unauthorized read access to a subset of Oracle Communications Cloud Native Core Security Edge Protection Proxy accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-83419?


## How do I fix CVE-2026-83419?

No fix has been published for CVE-2026-83419 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-83419 being exploited?

There is no known exploitation of CVE-2026-83419 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-83419 and fix it if it is affected.

What it is: CVE-2026-83419 is a medium-severity vulnerability in Oracle Communications Cloud Native Core Security Edge Protection Proxy, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-83419 in the wild and no public exploit code.

Affected product: Oracle Communications Cloud Native Core Security Edge Protection Proxy. 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-2026-83419/ (Markdown: https://insights.sbomify.com/CVE-2026-83419/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-83419
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-83419
- OSV: https://osv.dev/vulnerability/CVE-2026-83419

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-83419/
Summaries are generated and may contain mistakes; the official description above is the record.