# CVE-2026-71241: Book-Management-System - Unauthenticated Disclosure of Student PII and Borrowing History

> Unauthenticated attackers can enumerate student PII and borrowing history via unprotected Flask API endpoints in the Book-Management-System.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Aug 2026
- **Updated:** 10 Aug 2026
- **Also known as:** GHSA-9q89-f4h2-5wx7

## What is CVE-2026-71241?

CVE-2026-71241 is a high-severity missing authorization vulnerability in lyric777 Book-Management-System, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Book-Management-System's Flask API endpoints /student, /record, /books, /find_stu_book, and /find_not_return_book are missing the @login_required decorator that protects sibling routes (/search_student, /storage) in the same file. Because card_id values are sequential integers, the entire student database can be enumerated without authentication.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-71241?


## How do I fix CVE-2026-71241?

No fix has been published for CVE-2026-71241 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-71241 being exploited?

There is no known exploitation of CVE-2026-71241 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-71241 and fix it if it is affected.

What it is: CVE-2026-71241 is a high-severity missing authorization vulnerability in lyric777 Book-Management-System, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-71241 in the wild and no public exploit code.

Affected product: lyric777 Book-Management-System. 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-2026-71241/ (Markdown: https://insights.sbomify.com/CVE-2026-71241/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-71241
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-71241
- OSV: https://osv.dev/vulnerability/CVE-2026-71241

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-71241/
Summaries are generated and may contain mistakes; the official description above is the record.