# CVE-2026-27514: Tenda F3 Plaintext Credential Exposure in Configuration Download

> Attackers can retrieve plaintext router and admin passwords from the configuration download endpoint, potentially leading to full device compromise.

- **Severity:** High 7.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA: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:** 23 Feb 2026
- **Updated:** 11 May 2026
- **Also known as:** GHSA-jqx8-f6x9-hm34

## What is CVE-2026-27514?

CVE-2026-27514 is a high-severity vulnerability in Shenzhen Tenda Technology Co., Ltd. Tenda F3, published on 23 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Shenzhen Tenda F3 Wireless Router firmware V12.01.01.55_multi contains a sensitive information exposure vulnerability in the configuration download functionality. The configuration download response includes the router password and administrative password in plaintext. The endpoint also omits appropriate Cache-Control directives, which can allow the response to be stored in client-side caches and recovered by other local users or processes with access to cached browser data.

Weakness: CWE-525 (Use of Web Browser Cache Containing Sensitive Information), CWE-201 (Insertion of Sensitive Information Into Sent Data)

## Which versions are affected by CVE-2026-27514?

It affects 1 product.


Products: Tenda F3 Firmware.

## How do I fix CVE-2026-27514?

No fix has been published for CVE-2026-27514 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-27514 being exploited?

There is no known exploitation of CVE-2026-27514 in the wild and no public exploit code.

## Other vulnerabilities in Shenzhen Tenda Technology Co., Ltd. Tenda F3

- [CVE-2020-35391](https://insights.sbomify.com/CVE-2020-35391/): Information disclosure in n/a (critical 9.6)
- [CVE-2025-57569](https://insights.sbomify.com/CVE-2025-57569/): Memory corruption in n/a (medium 5.6)
- [CVE-2025-57570](https://insights.sbomify.com/CVE-2025-57570/): Memory corruption in n/a (medium 5.6)
- [CVE-2025-57571](https://insights.sbomify.com/CVE-2025-57571/): Memory corruption in n/a (medium 5.6)
- [CVE-2025-57572](https://insights.sbomify.com/CVE-2025-57572/): Memory corruption in n/a (medium 5.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-27514 and fix it if it is affected.

What it is: CVE-2026-27514 is a high-severity vulnerability in Shenzhen Tenda Technology Co., Ltd. Tenda F3, published on 23 Feb 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-2026-27514 in the wild and no public exploit code.

Affected product: Shenzhen Tenda Technology Co., Ltd. Tenda F3. 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-2026-27514/ (Markdown: https://insights.sbomify.com/CVE-2026-27514/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-27514
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-27514
- OSV: https://osv.dev/vulnerability/CVE-2026-27514

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-27514/
Summaries are generated and may contain mistakes; the official description above is the record.