Skip to main content

Boteraser | Website and Server Security Solutions

🛡️ USN-7612-1 — python-flask-cors (CVE-2024-6839 +4 more)

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

python-flask-cors vulnerabilities

It was discovered that Flask-CORS did not correctly handle certain regular

expressions. A remote attacker could possibly use this issue to leak

sensitive information or bypass authentication mechanisms. (CVE-2024-6839)

It was discovered that Flask-CORS allowed certain CORS headers to be

enabled by default. A remote attacker could possibly use this issue to leak

sensitive information. This issue only affected Ubuntu 20.04 LTS, Ubuntu

22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 24.10. (CVE-2024-6221) It was

discovered that Flask-CORS did not correctly handle case sensitivity when

matching paths. A remote attacker could possibly use this issue to leak

sensitive information. (CVE-2024-6866) It was discovered that Flask-CORS

did not correctly handle certain characters in URL paths. A remote attacker

could possibly use this issue to leak sensitive information or bypass

authentication mechanisms. (CVE-2024-6844) Elias Hohl was discovered that

Flask-CORS did not correctly sanitize log entries. A remote attacker could

possibly use this issue to corrupt log files. This issue only affected

Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-1681)

Affected software

USN-7612-1 is recorded against 1 package.

  • python-flask-cors (fixed in 4.0.0-1ubuntu0.1~esm1)

Timeline and source

Published on 2 July 2025 and last revised on 27 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Advisory)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)

Other advisories for this package

python-flask-cors has other advisories on record. If you are patching this one, these are worth checking on the same host:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-07-02
Updated 2026-08-20
Modified 2026-04-27
Fix URL N/A

Affected Packages

Software From version Fixed in
python-flask-cors — 4.0.0-1ubuntu0.1~esm1

Similar Threats

Free Vulnerability Check

Is your site affected by USN-7612-1?

BotEraser helps you identify potentially vulnerable plugins and themes by checking your installation against USN-7612-1 and other known CVE records.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

Browse related advisories

All advisoriesUbuntuUbuntu Undated
✓