Advisory Database
  • Advisories
  • Dependency Scanning
  1. pypi
  2. ›
  3. flask-reuploaded
  4. ›
  5. CVE-2026-27641

CVE-2026-27641: Flask-Reuploaded vulnerable to Remote Code Execution via Server-Side Template Injection

February 25, 2026 (updated October 27, 2026)

A critical path traversal and extension bypass vulnerability in Flask-Reuploaded allows remote attackers to achieve arbitrary file write and remote code execution through Server-Side Template Injection (SSTI).

References

  • github.com/advisories/GHSA-65mp-fq8v-56jr
  • github.com/jugmac00/flask-reuploaded/commit/d64c6b2f71cb73734fc38baa0e3e156926361288
  • github.com/jugmac00/flask-reuploaded/pull/180
  • github.com/jugmac00/flask-reuploaded/security/advisories/GHSA-65mp-fq8v-56jr
  • github.com/pypa/advisory-database/tree/main/vulns/flask-reuploaded/PYSEC-2026-341.yaml
  • nvd.nist.gov/vuln/detail/CVE-2026-27641
  • pypi.org/project/flask-reuploaded

Code Behaviors & Features

Detect and mitigate CVE-2026-27641 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 1.5.0

Fixed versions

  • 1.5.0

Solution

Upgrade to version 1.5.0 or above.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine
  • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Source file

pypi/flask-reuploaded/CVE-2026-27641.yml

Spotted a mistake? Edit the file on GitLab.

  • Site Repo
  • About GitLab
  • Terms
  • Privacy Statement
  • Contact

Page generated Sun, 08 Nov 2026 00:16:43 +0000.